"uuid","repository link","title","author","contributor","publication year","abstract","subject topic","language","publication type","publisher","isbn","issn","patent","patent status","bibliographic note","access restriction","embargo date","faculty","department","research group","programme","project","coordinates"
"uuid:5a034232-fc1b-4937-8d5a-aea406ec24e4","http://resolver.tudelft.nl/uuid:5a034232-fc1b-4937-8d5a-aea406ec24e4","Nonlinear and dot-dependent Zeeman splitting in GaAs/AlGaAs quantum dot arrays","Michal, V.P. (TU Delft Vandersypen Lab); Fujita, T. (TU Delft Vandersypen Lab); Baart, T.A. (TU Delft Vandersypen Lab); Danon, J. (Norwegian University of Science and Technology); Reichl, C (ETH Zürich); Wegscheider, W (ETH Zürich); Vandersypen, L.M.K. (TU Delft Vandersypen Lab); Nazarov, Y.V. (TU Delft QN/Nazarov Group)","","2018","We study the Zeeman splitting in lateral quantum dots that are defined in GaAs-AlGaAs heterostructures by means of split gates. We demonstrate a nonlinear dependence of the splitting on magnetic field and its substantial variations from dot to dot and from heterostructure to heterostructure. These phenomena are important in the context of information processing since the tunability and dot-dependence of the Zeeman splitting allow for a selective manipulation of spins. We show that spin-orbit effects related to the GaAs band structure quantitatively explain the observed magnitude of the nonlinear dependence of the Zeeman splitting. Furthermore, spin-orbit effects result in a dependence of the Zeeman splitting on predominantly the out-of-plane quantum dot confinement energy. We also show that the variations of the confinement energy due to charge disorder in the heterostructure may explain the dependence of Zeeman splitting on the dot position. This position may be varied by changing the gate voltages, which leads to an electrically tunable Zeeman splitting.","","en","journal article","","","","","","","","","","","Vandersypen Lab","","",""
"uuid:487fe4cf-7431-425f-b8da-78225b3a3124","http://resolver.tudelft.nl/uuid:487fe4cf-7431-425f-b8da-78225b3a3124","Weyl disks: Theoretical prediction","Erdmanis, J. (TU Delft QN/Nazarov Group; Kavli Institute of Nanoscience); Lukacs, A.L. (TU Delft QN/Nazarov Group; Kavli Institute of Nanoscience); Nazarov, Y.V. (TU Delft QN/Nazarov Group; Kavli Institute of Nanoscience)","","2018","A variety of quantum systems exhibit Weyl points in their spectra where two bands cross in a point of three-dimensional parameter space with conical dispersion in the vicinity of the point. We consider theoretically the soft constraint regime where the parameters are dynamical quantum variables. We have shown that in general the soft constraints, in the quasiclassical limit, result in Weyl disks where two states are (almost) degenerate in a finite two-dimensional region of the three-dimensional parameter space. We provide concrete calculations for two setups: Weyl point in a four-terminal superconducting structure and a Weyl exciton, i.e., a bound state of Weyl electron and a massive hole.","","en","journal article","","","","","","","","","","","","","",""
"uuid:1a95868d-024c-4d29-864a-78cddbb161ff","http://resolver.tudelft.nl/uuid:1a95868d-024c-4d29-864a-78cddbb161ff","Supercurrents in Unidirectional Channels Originate from Information Transfer in the Opposite Direction: A Theoretical Prediction","Huang, X. (TU Delft QN/Nazarov Group; Kavli Institute of Nanoscience); Nazarov, Y.V. (TU Delft QN/Nazarov Group; Kavli Institute of Nanoscience)","","2017","It has been thought that the long chiral edge channels cannot support any supercurrent between the superconducting electrodes. We show theoretically that the supercurrent can be mediated by a nonlocal interaction that facilitates a long-distance information transfer in the direction opposite of electron flow. We compute the supercurrent for several interaction models, including that of an external circuit.","","en","journal article","","","","","","","","","","","","","",""
"uuid:0401c4b7-c459-447b-b8f3-6a366c10a14e","http://resolver.tudelft.nl/uuid:0401c4b7-c459-447b-b8f3-6a366c10a14e","Probability distributions of continuous measurement results for conditioned quantum evolution","Franquet González, A. (TU Delft QN/Nazarov Group); Nazarov, Y.V. (TU Delft QN/Nazarov Group)","","2017","We address the statistics of continuous weak linear measurement on a few-state quantum system that is subject to a conditioned quantum evolution. For a conditioned evolution, both the initial and final states of the system are fixed: the latter is achieved by the postselection in the end of the evolution. The statistics may drastically differ from the nonconditioned case, and the interference between initial and final states can be observed in the probability distributions of measurement outcomes as well as in the average values exceeding the conventional range of nonconditioned averages. We develop a proper formalism to compute the distributions of measurement outcomes, and evaluate and discuss the distributions in experimentally relevant setups. We demonstrate the manifestations of the interference between initial and final states in various regimes. We consider analytically simple examples of nontrivial probability distributions. We reveal peaks (or dips) at half-quantized values of the measurement outputs. We discuss in detail the case of zero overlap between initial and final states demonstrating anomalously big average outputs and sudden jump in time-integrated output. We present and discuss the numerical evaluation of the probability distribution aiming at extending the analytical results and describing a realistic experimental situation of a qubit in the regime of resonant fluorescence.","","en","journal article","","","","","","","","","","","QN/Nazarov Group","","",""
"uuid:0a08e5c0-a189-490d-b88f-192819234a24","http://resolver.tudelft.nl/uuid:0a08e5c0-a189-490d-b88f-192819234a24","Topological transconductance quantization in a four-terminal Josephson junction","Eriksson, Erik (Université Grenoble Alpes; CEA Grenoble); Riwar, Roman Pascal (Université Grenoble Alpes; CEA Grenoble); Houzet, Manuel (Université Grenoble Alpes; CEA Grenoble); Meyer, Julia S. (Université Grenoble Alpes; CEA Grenoble); Nazarov, Y.V. (TU Delft QN/Nazarov Group)","","2017","Recently we predicted that the Andreev bound-state spectrum of four-terminal Josephson junctions may possess topologically protected zero-energy Weyl singularities, which manifest themselves in a quantized transconductance in units of 4e2/h when two of the terminals are voltage biased [R.-P. Riwar, M. Houzet, J. S. Meyer, and Y. V. Nazarov, Nature Commun. 7, 11167 (2016)2041-172310.1038/ncomms11167]. Here, using the Landauer-Büttiker scattering theory, we compute numerically the currents flowing through such a structure in order to assess the conditions for observing this effect. We show that the voltage below which the transconductance becomes quantized is determined by the interplay of nonadiabatic transitions between Andreev bound states and inelastic relaxation processes. We demonstrate that the topological quantization of the transconductance can be observed at voltages of the order of 10-2Δ/e,Δ being the the superconducting gap in the leads.","","en","journal article","","","","","","","","","","","QN/Nazarov Group","","",""
"uuid:0828ede8-9547-41fb-b1ba-602c160ae425","http://resolver.tudelft.nl/uuid:0828ede8-9547-41fb-b1ba-602c160ae425","Coherent transport properties of a three-terminal hybrid superconducting interferometer","Vischi, F. (Istituto Nanoscienze-CNR and Scuola Normale Superiore; University of Pisa); Carrega, M. (Istituto Nanoscienze-CNR and Scuola Normale Superiore); Strambini, E. (Istituto Nanoscienze-CNR and Scuola Normale Superiore); D'Ambrosio, S. (Istituto Nanoscienze-CNR and Scuola Normale Superiore); Bergeret, F. S. (Centro Mixto CSIC-UPV/EHU; Donostia International Physics Center); Nazarov, Y.V. (TU Delft QN/Nazarov Group); Giazotto, F. (Istituto Nanoscienze-CNR and Scuola Normale Superiore)","","2017","We present an exhaustive theoretical analysis of a double-loop Josephson proximity interferometer, such as the one recently realized by Strambini et al. for control of the Andreev spectrum via an external magnetic field. This system, called ω-SQUIPT, consists of a T-shaped diffusive normal metal (N) attached to three superconductors (S) forming a double-loop configuration. By using the quasiclassical Green-function formalism, we calculate the local normalized density of states, the Josephson currents through the device, and the dependence of the former on the length of the junction arms, the applied magnetic field, and the S/N interface transparencies. We show that by tuning the fluxes through the double loop, the system undergoes transitions from a gapped to a gapless state. We also evaluate the Josephson currents flowing in the different arms as a function of magnetic fluxes, and we explore the quasiparticle transport by considering a metallic probe tunnel-coupled to the Josephson junction and calculating its I-V characteristics. Finally, we study the performances of the ω-SQUIPT and its potential applications by investigating its electrical and magnetometric properties.","","en","journal article","","","","","","","","","","","QN/Nazarov Group","","",""
"uuid:6cd4a9d9-0f9c-4d1a-af10-859c8a80c0c0","http://resolver.tudelft.nl/uuid:6cd4a9d9-0f9c-4d1a-af10-859c8a80c0c0","Order, disorder, and tunable gaps in the spectrum of Andreev bound states in a multiterminal superconducting device","Yokoyama, T. (TU Delft QN/Theoretical Physics; University of Tokyo); Reutlinger, Johannes (Universität Konstanz); Belzig, Wolfgang (Universität Konstanz); Nazarov, Y.V. (TU Delft QN/Nazarov Group)","","2017","We consider the spectrum of Andreev bound states (ABSs) in an exemplary four-terminal superconducting structure where four chaotic cavities are connected by quantum point contacts to the terminals and to each other forming a ring. We nickname the resulting device 4T-ring. Such a tunable device can be realized in a 2D electron gas-superconductor or a graphene-based hybrid structure. We concentrate on the limit of a short structure and large conductance of the point contacts where there are many ABS in the device forming a quasicontinuous spectrum. The energies of the ABS can be tuned by changing the superconducting phases of the terminals. We observe the opening and closing of gaps in the spectrum upon changing the phases. This concerns the usual proximity gap that separates the levels from zero energy as well as less usual ""smile"" gaps that split the levels of the quasicontinuous spectrum. We demonstrate a remarkable crossover in the overall spectrum that occurs upon changing the ratio of conductances of the inner and outer point contacts. At big values of the ratio (closed limit), the levels exhibit a generic behavior expected for the spectrum of a disordered system manifesting level repulsion and Brownian ""motion"" upon changing the phases. At small values of the ratio (open limit), the levels are squeezed into narrow bunches separated by wide smile gaps. Each bunch consists of almost degenerate ABS formed by Andreev reflection between two adjacent terminals. We study in detail the properties of the spectrum in the limit of a small ratio, paying special attention to the crossings of bunches. We distinguish two types of crossings: (i) with a regular phase dependence of the levels and (ii) crossings where the Brownian motion of the levels leads to an apparently irregular phase dependence. We work out a perturbation theory that explains the observations both at a detailed level of random scattering in the device and at a phenomenological level of positively defined random matrices. The unusual properties of the spectrum originate from rather unobvious topological effects. The topology of the first kind is restricted to the semiclassical limit and related to the winding of the semiclassical Green function. It is responsible for the closing of the proximity gaps. The topology of the second kind comes about the discreteness of the number of modes in the point contacts and is responsible for the smile gaps. The topology of the third kind leads to the emergence of Weyl points in the spectrum and is not discussed in the context of this article.","","en","journal article","","","","","","","","","","","QN/Theoretical Physics","","",""
"uuid:0ce9af59-c1b3-4d41-a787-460888f2d527","http://resolver.tudelft.nl/uuid:0ce9af59-c1b3-4d41-a787-460888f2d527","Theoretical Model to Explain Excess of Quasiparticles in Superconductors","Bespalov, Anton (Université Grenoble Alpes); Houzet, Manuel (Université Grenoble Alpes); Meyer, Julia S. (Université Grenoble Alpes); Nazarov, Y.V. (TU Delft QN/Nazarov Group)","","2016","Experimentally, the concentration of quasiparticles in gapped superconductors always largely exceeds the equilibrium one at low temperatures. Since these quasiparticles are detrimental for many applications, it is important to understand theoretically the origin of the excess. We demonstrate in detail that the dynamics of quasiparticles localized at spatial fluctuations of the gap edge becomes exponentially slow. This gives rise to the observed excess in the presence of a vanishingly weak nonequilibrium agent.","","en","journal article","","","","","","","","","","","QN/Nazarov Group","","",""
"uuid:985a4a5b-3efb-461b-a89c-39cfd4d5783b","http://resolver.tudelft.nl/uuid:985a4a5b-3efb-461b-a89c-39cfd4d5783b","Multi-terminal Josephson junctions as topological matter","Riwar, Roman Pascal (Université Grenoble Alpes); Houzet, Manuel (Université Grenoble Alpes); Meyer, Julia S. (Université Grenoble Alpes); Nazarov, Y.V. (TU Delft QN/Nazarov Group)","","2016","Topological materials and their unusual transport properties are now at the focus of modern experimental and theoretical research. Their topological properties arise from the bandstructure determined by the atomic composition of a material and as such are difficult to tune and naturally restricted to ≤3 dimensions. Here we demonstrate that n-terminal Josephson junctions with conventional superconductors may provide novel realizations of topology in n-1 dimensions, which have similarities, but also marked differences with existing 2D or 3D topological materials. For n≥4, the Andreev subgap spectrum of the junction can accommodate Weyl singularities in the space of the n-1 independent superconducting phases, which play the role of bandstructure quasimomenta. The presence of these Weyl singularities enables topological transitions that are manifested experimentally as changes of the quantized transconductance between two voltage-biased leads, the quantization unit being 4e^{2}/h, where e is the electric charge and h is the Planck constant.","","en","journal article","","","","","","","","","","","QN/Nazarov Group","","",""
"uuid:8cea7557-81b3-43d0-a77f-1a44c4ce60d5","http://resolver.tudelft.nl/uuid:8cea7557-81b3-43d0-a77f-1a44c4ce60d5","Density of states in gapped superconductors with pairing-potential impurities","Bespalov, Anton (Russian Academy of Sciences; Université Grenoble Alpes); Houzet, Manuel (Université Grenoble Alpes); Meyer, Julia S. (Université Grenoble Alpes); Nazarov, Y.V. (TU Delft QN/Nazarov Group)","","2016","We study the density of states in disordered s-wave superconductors with a small gap anisotropy. We consider disorder in the form of common nonmagnetic scatterers and pairing-potential impurities, which interact with electrons via an electric potential and a local distortion of the superconducting gap. Using quasiclassical Green functions, we determine the bound-state spectrum at a single impurity and the density of states at a finite concentration of impurities. We show that, if the gap is isotropic, an isolated impurity with suppressed pairing supports an infinite number of Andreev states. With growing impurity concentration, the energy-dependent density of states evolves from a sharp gap edge with an impurity band below it to a smeared BCS singularity in the so-called universal limit. Within one spin sector, pairing-potential impurities and weak spin-polarized magnetic impurities have essentially the same effect on the density of states. We note that, if a gap anisotropy is present, the density of states becomes sensitive to ordinary potential disorder, and the existence of Andreev states localized at pairing-potential impurities requires special conditions. An unusual feature related to the anisotropy is a nonmonotonic dependence of the gap edge smearing on impurity concentration.","","en","journal article","","","","","","","","","","","QN/Nazarov Group","","",""
"uuid:bba9b656-140c-4928-ba55-077de20442fd","http://resolver.tudelft.nl/uuid:bba9b656-140c-4928-ba55-077de20442fd","Closing the proximity gap in a metallic Josephson junction between three superconductors","Padurariu, C.; Jonkcheere, T.; Melin, R.; Feinberg, D.; Martin, T.; Nazarov, Y.V.","","2015","We describe the proximity effect in a short disordered metallic junction between three superconducting leads. Andreev bound states in the multiterminal junction may cross the Fermi level. We reveal that for a quasicontinuous metallic density of states, crossings at the Fermi level manifest as a closing of the proximity-induced gap. We calculate the local density of states for a wide range of transport parameters using quantum circuit theory. The gap closes inside an area of the space spanned by the superconducting phase differences. We derive an approximate analytic expression for the boundary of the area and compare it to the full numerical solution. The size of the area increases with the transparency of the junction and is sensitive to asymmetry. The finite density of states at zero energy is unaffected by the electron-hole decoherence present in the junction, although decoherence is important at higher energies. Our predictions can be tested using tunneling transport spectroscopy. To encourage experiments, we calculate the current-voltage characteristic in a typical measurement setup. We show how the structure of the local density of states can be mapped out from the measurement.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:51f6b7ba-92d4-4e8d-bbd5-05b93560b8df","http://resolver.tudelft.nl/uuid:51f6b7ba-92d4-4e8d-bbd5-05b93560b8df","Exact correspondence between Renyi entropy flows and physical flows","Ansari, M.H.; Nazarov, Y.V.","","2015","We present a universal relation between the flow of a Renyi entropy and the full counting statistics of energy transfers. We prove the exact relation for a flow to a system in thermal equilibrium that is weakly coupled to an arbitrary time-dependent and nonequilibrium system. The exact correspondence, given by this relation, provides a simple protocol to quantify the flows of Shannon and Renyi entropies from the measurements of energy transfer statistics.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:4b968b36-18ea-4ef9-9076-846efd851748","http://resolver.tudelft.nl/uuid:4b968b36-18ea-4ef9-9076-846efd851748","Strong effects of weak ac driving in short superconducting junctions","Riwar, R.P.; Houzet, M.; Meyer, J.S.; Nazarov, Y.V.","","2015","We study a short multichannel superconducting junction subject to dc and ac phase biases. The ac modulation changes the occupation of the Andreev bound states formed at the constriction by transitions between bound states and the continuum. In a short junction, the nonequilibrium Andreev bound-state population may relax through processes that conserve parity of the occupation number on the same bound state and processes that do not conserve it. We argue that the parity-conserving processes occur on a much faster time scale. In this case, even a weak driving may lead to a large nonequilibrium quasiparticle population scaling with the number of channels and results in a large deviation of the supercurrent from its equilibrium value. We show that this effect is accompanied by a quasiparticle current which may lead to a measurable charge imbalance in the vicinity of the junction. Furthermore, we study the time evolution of the supercurrent after switching off the ac drive. On a time scale where parity relaxation is negligible, the supercurrent relaxes to a stationary nonequilibrium state. Finally, we briefly outline the regime of ultraweak driving where the ac-induced processes occur on a time scale comparable to that of parity relaxation.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:1a30a9f6-70a4-4e9d-868c-68385eb55f90","http://resolver.tudelft.nl/uuid:1a30a9f6-70a4-4e9d-868c-68385eb55f90","Rényi entropy flows from quantum heat engines","Ansari, M.H.; Nazarov, Y.V.","","2015","We evaluate Rényi entropy flows from generic quantum heat engines (QHE) to a weakly coupled probe environment kept in thermal equilibrium. We show that the flows are determined not only by heat flow but also by a quantum coherent flow that can be separately measured in experiment apart from the heat flow measurement. The same pertains to Shannon entropy flow. This appeals for a revision of the concept of entropy flows in quantum nonequlibrium thermodynamics.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:a1c00639-6cd8-4f84-abc6-d50a25dbb8b7","http://resolver.tudelft.nl/uuid:a1c00639-6cd8-4f84-abc6-d50a25dbb8b7","Critical current semiconductor nanowire Josephson junctions in the presence of magnetic field","Yokoyama, T.; Eto, M.; Nazarov, Y.V.","","2014","We study theoretically the critical current in semiconductor nanowire Josephson junction with strong spin-orbit interaction. The critical current oscillates with an external magnetic field. We reveal that the oscillation of critical current depends on the orientation of magnetic field in the presence of spin-orbit interaction. We perform a numerical simulation using a tight-binding model. The Andreev levels are calculated as a function of phase difference ? between two superconductors. The DC Josephson current is evaluated from the Andreev levels in the case of short junctions. The spin-orbit interaction induces the effective magnetic field. When the external field is parallel with the effective one, the critical current oscillates accompanying the 0-? like transition at the cusp of critical current. The distance of cusps increases gradually with increasing of the angle between the external and effective fields. The magnetic anisotropy of critical current is attributed to the spin precession due to the spin-orbit interaction.","","en","journal article","IOP Publishing","","","","","","","","Aerospace Engineering","Aerodynamics, Wind Energy & Propulsion","","","",""
"uuid:accf092e-b6d5-4bae-a5c0-05ed687bd59a","http://resolver.tudelft.nl/uuid:accf092e-b6d5-4bae-a5c0-05ed687bd59a","Secondary “smile”-gap in the density of states of a diffusive Josephson junction for a wide range of contact types","Reutlinger, J.; Glazman, L.; Nazarov, Y.V.; Belzig, W.","","2014","The superconducting proximity effect leads to strong modifications of the local density of states in diffusive or chaotic cavity Josephson junctions, which displays a phase-dependent energy gap around the Fermi energy. The so-called minigap of the order of the Thouless energy ETh is related to the inverse dwell time in the diffusive region in the limit ETh??, where ? is the superconducting energy gap. In the opposite limit of a large Thouless energy ETh??, a small new feature has recently attracted attention, namely, the appearance of a further secondary gap, which is around two orders of magnitude smaller compared to the usual superconducting gap. It appears in a chaotic cavity just below the superconducting gap edge ? and vanishes for some value of the phase difference between the superconductors. We extend previous theory restricted to a normal cavity connected to two superconductors through ballistic contacts to a wider range of contact types. We show that the existence of the secondary gap is not limited to ballistic contacts, but is a more general property of such systems. Furthermore, we derive a criterion which directly relates the existence of a secondary gap to the presence of small transmission eigenvalues of the contacts. For generic continuous distributions of transmission eigenvalues of the contacts, no secondary gap exists, although we observe a singular behavior of the density of states at ?. Finally, we provide a simple one-dimensional scattering model which is able to explain the characteristic “smile” shape of the secondary gap.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:c6cce85e-106e-4ec8-894f-02da9533fd9e","http://resolver.tudelft.nl/uuid:c6cce85e-106e-4ec8-894f-02da9533fd9e","Anomalous Josephson effect induced by spin-orbit interaction and Zeeman effect in semiconductor nanowires","Yokoyama, T.; Eto, M.; Nazarov, Y.V.","","2014","We investigate theoretically the Josephson junction of semiconductor nanowire with strong spin-orbit (SO) interaction in the presence of magnetic field. By using a tight-binding model, the energy levels En of Andreev bound states are numerically calculated as a function of phase difference ? between two superconductors in the case of short junctions. The dc Josephson current is evaluated from the Andreev levels. In the absence of SO interaction, a 0-? transition due to the magnetic field is clearly observed. In the presence of SO interaction, the coexistence of SO interaction and Zeeman effect results in En(??)?En(?), where the anomalous Josephson current flows even at ?=0. In addition, the direction dependence of critical current is observed, in accordance with experimental results.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:416f76ba-3b02-4a90-b263-03da1be086e7","http://resolver.tudelft.nl/uuid:416f76ba-3b02-4a90-b263-03da1be086e7","Light-superconducting interference devices","Godschalk, F.; Nazarov, Y.V.","","2014","Recently, we have proposed the half-Josephson laser (HJL): a device that combines lasing with superconducting leads, providing a locking between the optical phase and the superconducting phase difference between the leads. In this work, we propose and investigate two setups derived from a superconducting quantum interference device (SQUID), where two conventional Josephson junctions are replaced by two HJLs. In the first setup, the HJLs share the same resonant mode, while in the second setup two separate resonant modes of the two lasers are coupled optically. We dub the setup “light-superconducting interference device” (LSID). In both setups, we find the operating regimes similar to those of a single HJL. Importantly, the steady lasing field is significantly affected by the magnetic flux penetrating the SQUID loop, with respect to both amplitude and phase. This provides opportunities to tune or even quench the lasing by varying a small magnetic field. For the second setup, we find a parameter range where the evolution equation for the laser fields supports periodic cycles. The fields are thus modulated with the frequency of the cycle resulting in an emission spectrum consisting of a set of discrete modes. From this spectrum, two modes dominate in the limit of strong optical coupling. Therefore, the LSID can be also used to generate such modulated light.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:ccc416a8-3aba-4bca-b961-7a3d9d7e4eb2","http://resolver.tudelft.nl/uuid:ccc416a8-3aba-4bca-b961-7a3d9d7e4eb2","Two types of topological transitions in finite Majorana wires","Pikulin, D.; Nazarov, Y.V.","","2013","Motivated by the recent advances in studying Majorana states in nanowires under conditions of the superconducting proximity effect, we address the correspondence between the common topological transition in an infinite system and a topological transition of another type that manifests itself in the positions of the poles of the scattering matrices. We establish a universal dependence of the pole positions in the vicinity of the common transition on the parameter controlling the transition, and discuss the manifestations of the pole transitions in the differential conductance.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:93fec2d1-50a0-4f75-8866-7432c74dc214","http://resolver.tudelft.nl/uuid:93fec2d1-50a0-4f75-8866-7432c74dc214","Lasing at half the Josephson frequency with exponentially long coherence times","Godschalk, F.; Nazarov, Y.V.","","2013","We describe a superconducting device capable of producing laser light in the visible range at half the Josephson generation frequency, with the optical phase of the light locked to the superconducting phase difference. An earlier proposed device, the so-called “half-Josephson laser” [ Phys. Rev. Lett. 107 073901 (2011)], cannot provide long coherence times, because of spontaneous switchings between the emitter states. To circumvent this we consider N?1 emitters driving an optical resonator mode. We derive a general model that captures essential physics of such devices while not depending on specific microscopic details. We find the conditions under which the coherence times are exponentially long, thus surpassing the fundamental limitation on the coherence times of common lasers. For this we study the noise in the device. In particular, we are interested in the rate of large fluctuations of the light field in the limit where the typical fluctuations are small. The large fluctuations are responsible for switching of the laser between stable states of radiation and therefore determine the coherence time.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:25a8af6a-559d-4479-92c2-dd68e689c02b","http://resolver.tudelft.nl/uuid:25a8af6a-559d-4479-92c2-dd68e689c02b","Quantum Synchronization of Conjugated Variables in a Superconducting Device Leads to the Fundamental Resistance Quantization","Hriscu, A.M.; Nazarov, Y.V.","","2013","We propose a way to achieve quantum synchronization of two canonically conjugated variables. For this, we employ a superconducting device where the synchronization of Josephson and Bloch oscillations results in the quantization of transresistance similar to that in the (fractional) quantum Hall effect. An LC oscillator is a key component to achieve an exponentially small rate of synchronization errors.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:2f402d0d-c4f5-4c76-8004-7acddba4c471","http://resolver.tudelft.nl/uuid:2f402d0d-c4f5-4c76-8004-7acddba4c471","“Smile” Gap in the Density of States of a Cavity between Superconductors","Reutlinger, J.; Glazman, L.; Nazarov, Y.V.; Belzig, W.","","2013","The density of Andreev levels in a normal metal (N) in contact with two superconductors (S) is known to exhibit an induced minigap related to the inverse dwell time. We predict a small secondary gap just below the superconducting gap edge—a feature that has been overlooked so far in numerous microscopic studies of the density of states in S?N?S structures. In a generic structure with N being a chaotic cavity, the secondary gap is the widest at zero phase bias. It closes at some finite phase bias, forming the shape of a “smile”. Asymmetric couplings give even richer gap structures near the phase difference ?. All the features found should be amendable to experimental detection in high-resolution low-temperature tunneling spectroscopy.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:c1c0d49b-f05a-427e-81d2-a67f29b19657","http://resolver.tudelft.nl/uuid:c1c0d49b-f05a-427e-81d2-a67f29b19657","Effect of mechanical resonance on Josephson dynamics","Padurariu, C.; Keijzers, C.J.H.; Nazarov, Y.V.","","2012","We study theoretically dynamics in a Josephson junction coupled to a mechanical resonator looking at the signatures of the resonance in dc electrical response of the junction. Such a system can be realized experimentally as a suspended ultraclean carbon nanotube brought in contact with two superconducting leads. A nearby gate electrode can be used to tune the junction parameters and to excite mechanical motion. We augment theoretical estimations with the values of setup parameters measured in one of the samples fabricated. We show that charging effects in the junction give rise to a mechanical force that depends on the superconducting phase difference and can excite the resonant mode. We develop a model that encompasses the coupling of electrical and mechanical dynamics. We compute the mechanical response (the effect of mechanical motion) in the regime of phase and dc voltage bias. We thoroughly investigate the regime of combined ac and dc bias where Shapiro steps are developed and reveal several distinct regimes characteristic for this effect. Our results can be immediately applied in the context of experimental detection of the mechanical motion in realistic superconducting nanomechanical devices.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:08a45eee-70bb-4ba5-a6f9-b3b43f6bef67","http://resolver.tudelft.nl/uuid:08a45eee-70bb-4ba5-a6f9-b3b43f6bef67","Phenomenology and dynamics of a Majorana Josephson junction","Pikulin, D.I.; Nazarov, Y.V.","","2012","We derive a generic phenomenological model of a Majorana Josephson junction that accounts for avoided crossing of Andreev states, and investigate its dynamics at constant bias voltage to reveal an unexpected pattern of an any-? Josephson effect in the limit of slow decoherence: sharp peaks in noise not related to any definite fraction of Josephson frequency.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:917bd434-da14-4f5a-b725-4d3fd9633516","http://resolver.tudelft.nl/uuid:917bd434-da14-4f5a-b725-4d3fd9633516","Statistics of radiation at Josephson parametric resonance","Padurariu, C.; Hassler, F.; Nazarov, Y.V.","","2012","Motivated by recent experiments, we study theoretically the full counting statistics of radiation emitted below the threshold of parametric resonance in a Josephson-junction circuit. In contrast to most optical systems, a significant part of emitted radiation can be collected and converted to an output signal. This permits studying the correlations of the radiation. To quantify the correlations, we derive a closed expression for full counting statistics in the limit of long measurement times. We demonstrate that the statistics can be interpreted in terms of uncorrelated bursts, each encompassing 2N photons; this accounts for the bunching of the photon pairs produced in the course of the parametric resonance. We present the details of the burst rates. In addition, we study the time correlations within the bursts and discuss experimental signatures of the statistics deriving the frequency-resolved cross-correlations.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Quantum Nanoscience","","","",""
"uuid:37cbc6ee-5139-4965-a4ab-bdf2fd9c4eb2","http://resolver.tudelft.nl/uuid:37cbc6ee-5139-4965-a4ab-bdf2fd9c4eb2","Asymmetric current-phase relation due to spin-orbit interaction in semiconductor nanowire Josephson junction","Yokoyama, T.; Eto, M.; Nazarov, Y.V.","","2012","We theoretically study the current-phase relation in semiconductor nanowire Josephson junction in the presence of spin-orbit interaction. In the nanowire, the impurity scattering with strong SO interaction is taken into account using the random matrix theory. In the absence of magnetic field, the Josephson current I and phase difference ? between the superconductors satisfy the relation of I(?) = –I(–?). In the presence of magnetic field along the nanowire, the interplay between the SO interaction and Zeeman effect breaks the current-phase relation of I(?) = –I(–?). In this case, we show that the critical current depends on the current direction, which qualitatively agrees with recent experimental findings.","spin-orbit interaction; Josephson junction; semiconductor nanowire; Andreev bound state","en","conference paper","American Institute of Physics","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:7c981781-95a5-4ecb-8abf-2f532efea225","http://resolver.tudelft.nl/uuid:7c981781-95a5-4ecb-8abf-2f532efea225","Theory of temperature fluctuation statistics in superconductor-normal metal tunnel structures","Laakso, M.A.; Heikkilä, T.T.; Nazarov, Y.V.","","2012","We describe the statistics of temperature fluctuations in a SINIS structure, where a normal metal island (N) is coupled by tunnel junctions (I) to two superconducting leads (S). We specify conditions under which this structure exhibits manifestly non-Gaussian fluctuations of temperature. We consider both the Gaussian and non-Gaussian regimes of these fluctuations, and the current fluctuations that are caused by the fluctuating temperature. We also describe a measurement setup that could be used to observe the temperature fluctuations.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:e40c147e-1b35-4a02-96eb-90ed6ad57f53","http://resolver.tudelft.nl/uuid:e40c147e-1b35-4a02-96eb-90ed6ad57f53","Quantum Phase Slips in Superconducting Wires with Weak Inhomogeneities","Vanevic, M.; Nazarov, Y.V.","","2012","Quantum phase slips are traditionally considered in diffusive superconducting wires which are assumed homogeneous. We present a definite estimate for the amplitude of phase slips that occur at a weak inhomogeneity in the wire where local resistivity is slightly increased. We model such a weak link as a general coherent conductor and show that the amplitude is dominated by the topological part of the action. We argue that such weak links occur naturally in apparently homogeneous wires and adjust the estimate to that case. The fabrication of an artificial weak link would localize phase slips and facilitate a better control of the phase-slip amplitude.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:a46a8d82-71df-45c6-9e38-95a9e0684a9d","http://resolver.tudelft.nl/uuid:a46a8d82-71df-45c6-9e38-95a9e0684a9d","Polarons in Suspended Carbon Nanotubes","Snyman, I.; Nazarov, Y.V.","","2012","We prove theoretically the possibility of electric-field controlled polaron formation involving flexural (bending) modes in suspended carbon nanotubes. Upon increasing the field, the ground state of the system with a single extra electron undergoes a first-order phase transition between an extended state and a localized polaron state. For a common experimental setup, the threshold electric field is only of the order of ?5×10-2??V/?m.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:8e8c1c28-413f-4ece-be8b-3b9da9f65e28","http://resolver.tudelft.nl/uuid:8e8c1c28-413f-4ece-be8b-3b9da9f65e28","Manifestly Non-Gaussian Fluctuations in Superconductor-Normal Metal Tunnel Nanostructures","Laakso, M.A.; Heikkilä, T.T.; Nazarov, Y.V.","","2012","We propose a mesoscopic setup which exhibits strong and manifestly non-Gaussian fluctuations of energy and temperature when suitably driven out of equilibrium. The setup consists of a normal metal island (N) coupled by tunnel junctions (I) to two superconducting leads (S), forming a SINIS structure, and is biased near the threshold voltage for quasiparticle tunneling, eV?2?. The fluctuations can be measured by monitoring the time-dependent electric current through the system. This makes the setup suitable for the realization of feedback schemes which can be used to stabilize the temperature to the desired value.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:38dad7e4-7b1b-48e5-aff4-e43d18230337","http://resolver.tudelft.nl/uuid:38dad7e4-7b1b-48e5-aff4-e43d18230337","Korn Inequalities for a Reinforced Plate","Nazarov, S.A.; Slutskij, A.S.; Sweers, G.H.","","2012","Asymptotically optimal Korn inequalities are derived for a composite material that consists of two families of stiff rods surrounded by a homogeneous soft material. The composite plate is fixed through the protruding stiff rods only. The asymptotic behaviour is shown to be crucially different for families of connected rods and for those where the rods are isolated.","Korn inequality; homogenisation; reinforced plate","en","journal article","Springer-Verlag","","","","","","","","Electrical Engineering, Mathematics and Computer Science","Delft Institute of Applied Mathematics","","","",""
"uuid:10241385-8c65-4738-a0de-28b5e913b7ec","http://resolver.tudelft.nl/uuid:10241385-8c65-4738-a0de-28b5e913b7ec","Flows of Rényi entropies","Nazarov, Y.V.","","2011","We demonstrate that the condensed matter quantum systems encompassing two reservoirs connected by a junction permit a natural definition of flows of conserved measures, i.e., Rényi entropies. Such flows are similar to the flows of physical conserved quantities such as charge and energy. We develop a perturbation technique that permits efficient computation of Rényi entropy flows and analyze second- and fourth-order contributions. Second-order approximation was shown to correspond directly to the transition events in the system and thereby to possess a set of intuitive features. The analysis of fourth-order corrections reveals a more complicated picture: The intuitive relations do not hold anymore, and the corrections exhibit divergencies in low-temperature limit, manifesting an intriguing nonanalytical dependence of the flows on coupling strength in the limit of weak couplings and vanishing temperatures.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:74ab6f13-0c3e-4abd-abea-946c6250c447","http://resolver.tudelft.nl/uuid:74ab6f13-0c3e-4abd-abea-946c6250c447","Proposal for an Optical Laser Producing Light at Half the Josephson Frequency","Godschalk, F.; Hassler, F.; Nazarov, Y.V.","","2011","We describe a superconducting device capable of producing laser light in the visible range at half of the Josephson generation frequency with the optical phase of the light locked to the superconducting phase difference. It consists of two single-level quantum dots embedded in a p-n semiconducting heterostructure and surrounded by a cavity supporting a resonant optical mode. We study decoherence and spontaneous switching in the device.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:00c2f039-85d5-4a24-a399-670929dc3af3","http://resolver.tudelft.nl/uuid:00c2f039-85d5-4a24-a399-670929dc3af3","Nuclear spin pumping and electron spin susceptibilities","Danon, J.; Nazarov, Y.V.","","2011","In this work we present a new formalism to evaluate the nuclear spin dynamics driven by hyperfine interaction with nonequilibrium electron spins. To describe the dynamics up to second order in the hyperfine coupling it suffices to evaluate the susceptibility and fluctuations of the electron spin. Our approach does not rely on a separation of electronic energy scales or the specific choice of electronic basis states, thereby overcoming practical problems which may arise in certain limits when using a more traditional formalism based on rate equations.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:8934dab3-0da4-4aa6-abdb-b413ae075b37","http://resolver.tudelft.nl/uuid:8934dab3-0da4-4aa6-abdb-b413ae075b37","Coulomb blockade due to quantum phase slips illustrated with devices","Hriscu, A.M.; Nazarov, Y.V.","","2011","To illustrate the emergence of Coulomb blockade from coherent quantum phase-slip processes in thin superconducting wires, we propose and theoretically investigate two elementary setups, or devices. The setups are derived from the Cooper-pair box and Cooper-pair transistor, so we refer to them as the QPS box and QPS transistor, respectively. We demonstrate that the devices exhibit sensitivity to a charge induced by a gate electrode, this being the main signature of Coulomb blockade. Experimental realization of these devices will unambiguously prove the Coulomb blockade as an effect of coherence of phase-slip processes. We analyze the emergence of discrete charging in the limit of strong phase slips. We have found and investigated six distinct regimes that are realized depending on the relation between three characteristic energy scales: inductive energy, charging energy, and phase-slip amplitude. For completeness, we include a brief discussion of dual Josephson-junction devices.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:05acb656-d337-4ed2-9366-880ac2ef6910","http://resolver.tudelft.nl/uuid:05acb656-d337-4ed2-9366-880ac2ef6910","Model of a Proposed Superconducting Phase Slip Oscillator: A Method for Obtaining Few-Photon Nonlinearities","Hriscu, A.M.; Nazarov, Y.V.","","2011","We theoretically investigate a driven oscillator with the superconducting inductance subject to quantum phase slips (QPS). We find uncommon nonlinearities in the proposed device: they oscillate as a function of the number of photons N with a local period of the order of ?N. We prove that such nonlinearities result in multiple metastable states encompassing few photons and study oscillatory dependence of various responses of the oscillator. Such nonlinearities enable new possibilities for quantum manipulation of photon states and very sensitive measurements to confirm the coherence of phase slips.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","QN/Quantum Nanoscience","","","",""
"uuid:ee26a48b-9375-43d2-ac6a-7eab0258d529","http://resolver.tudelft.nl/uuid:ee26a48b-9375-43d2-ac6a-7eab0258d529","Spectra of Two-Dimensional Models for Thin Plates with Sharp Edges","Campbell, A.; Nazarov, S.A.; Sweers, G.H.","","2010","We investigate the spectrum of the two-dimensional model for a thin plate with a sharp edge. The model yields an elliptic $3\times3$ Agmon–Douglis–Nirenberg system on a planar domain with coefficients degenerating at the boundary. We prove that in the case of a degeneration rate $\alpha<2$, the spectrum is discrete, but, for $\alpha\geq2$, there appears a nontrivial essential spectrum. A first result for the degenerating scalar fourth order plate equation is due to Mikhlin. We also study the positive definiteness of the quadratic energy form and the necessity to impose stable boundary conditions. These results differ from the ones that Mikhlin published.","thin plate; sharp edge; varying thickness; essential spectrum; stable boundary conditions","en","journal article","Society for Industrial and Applied Mathematics","","","","","","","","Electrical Engineering, Mathematics and Computer Science","Delft Institute of Applied Mathematics","","","",""
"uuid:2467faae-1a84-40f6-ac78-278941b8e965","http://resolver.tudelft.nl/uuid:2467faae-1a84-40f6-ac78-278941b8e965","Korn inequalities for a reinforced plate","Nazarov, S.A.; Slutskij, A.S.; Sweers, G.H.","","2010","Asymptotically optimal Korn inequalities are derived for a composite material that consists of two families of stiff rods surrounded by a homogeneous soft material. The composite plate is fixed through the protruding stiff rods only. The asymptotic behaviour is shown to be crucially different for families of connected rods and for those where the rods are isolated.","korn inequality; homogenisation; reinforced plate","en","journal article","Springer","","","","","","","","Electrical Engineering, Mathematics and Computer Science","Delft Institute of Applied Mathematics","","","",""
"uuid:f9b0e6a7-a8af-4f4f-89e2-8ded4dd07ac9","http://resolver.tudelft.nl/uuid:f9b0e6a7-a8af-4f4f-89e2-8ded4dd07ac9","Giant current fluctuations in an overheated single-electron transistor","Laakso, M.A.; Heikkilä, T.T.; Nazarov, Y.V.","","2010","Interplay of cotunneling and single-electron tunneling in a thermally isolated single-electron transistor leads to peculiar overheating effects. In particular, there is an interesting crossover interval where the competition between cotunneling and single-electron tunneling changes to the dominance of the latter. In this interval, the current exhibits anomalous sensitivity to the effective electron temperature of the transistor island and its fluctuations. We present a detailed study of the current and temperature fluctuations at this interesting point. The methods implemented allow for a complete characterization of the distribution of the fluctuating quantities, well beyond the Gaussian approximation. We reveal and explore the parameter range where, for sufficiently small transistor islands, the current fluctuations become gigantic. In this regime, the optimal value of the current, its expectation value, and its standard deviation differ from each other by parametrically large factors. This situation is unique for transport in nanostructures and for electron transport in general. The origin of this spectacular effect is the exponential sensitivity of the current to the fluctuating effective temperature.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:fc08f7e2-51f3-492a-9733-283be98c69b3","http://resolver.tudelft.nl/uuid:fc08f7e2-51f3-492a-9733-283be98c69b3","Disentangling the effects of spin-orbit and hyperfine interactions on spin blockade","Nadj-Perge, S.; Frolov, S.M.; Van Tilburg, J.W.W.; Danon, J.; Nazarov, Y.V.; Algra, R.; Bakkers, E.P.A.M.; Kouwenhoven, L.P.","","2010","We have achieved the few-electron regime in InAs nanowire double quantum dots. Spin blockade is observed for the first two half-filled orbitals, where the transport cycle is interrupted by forbidden transitions between triplet and singlet states. Partial lifting of spin blockade is explained by spin-orbit and hyperfine mechanisms that enable triplet to singlet transitions. The measurements over a wide range of interdot coupling and tunneling rates to the leads are well reproduced by a simple transport model. This allows us to separate and quantify the contributions of the spin-orbit and hyperfine interactions.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:f05b5f18-d690-4e28-abc8-e5555772571d","http://resolver.tudelft.nl/uuid:f05b5f18-d690-4e28-abc8-e5555772571d","Fully Overheated Single-Electron Transistor","Laakso, M.A.; Heikkilä, T.T.; Nazarov, Y.V.","","2010","We consider the fully overheated single-electron transistor, where the heat balance is determined entirely by electron transfers. We find three distinct transport regimes corresponding to cotunneling, single-electron tunneling, and a competition between the two. We find an anomalous sensitivity to temperature fluctuations at the crossover between the two latter regimes that manifests in an exceptionally large Fano factor of current noise.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:d4c44865-63f3-45bd-995d-20769f8c4b9a","http://resolver.tudelft.nl/uuid:d4c44865-63f3-45bd-995d-20769f8c4b9a","Theoretical proposal for superconducting spin qubits","Padurariu, C.; Nazarov, Y.V.","","2010","We propose and theoretically investigate superconducting spin qubits. Superconducting spin qubit consists of a single spin confined in a Josephson junction. We show that owing to spin-orbit interaction, superconducting phase difference across the junction can polarize this spin. We demonstrate that this enables single-qubit operations and more complicated quantum gates, where spins of different qubits interact via a mutual inductance of the superconducting loop where the junctions are embedded. Recent experimental realizations of Josephson junctions made of semiconductor quantum dots in contact with superconducting leads have shown that the number of electrons in the quantum dot can be tuned by a gate voltage. Superconducting spin qubit is realized when the number of electrons is odd. We discuss the qubit properties at phenomenological level. We present a microscopic theory that enables us to make accurate estimations of the qubit parameters by evaluating the spin-dependent Josephson energy in the framework of fourth-order perturbation theory.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:94583a93-0242-43bb-884f-4b9521b890b6","http://resolver.tudelft.nl/uuid:94583a93-0242-43bb-884f-4b9521b890b6","Josephson Light-Emitting Diode","Recher, P.; Nazarov, Y.V.; Kouwenhoven, L.P.","","2010","We consider an optical quantum dot where an electron level and a hole level are coupled to respective superconducting leads. We find that electrons and holes recombine producing photons at discrete energies as well as a continuous tail. Further, the spectral lines directly probe the induced superconducting correlations on the dot. At energies close to the applied bias voltage eVsd, a parameter range exists, where radiation proceeds in pairwise emission of polarization correlated photons. At energies close to 2eVsd, emitted photons are associated with Cooper pair transfer and are reminiscent of Josephson radiation. We discuss how to probe the coherence of these photons in a SQUID geometry via single-photon interference.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:5e52674a-429f-466d-a29a-4ab2ebfa8590","http://resolver.tudelft.nl/uuid:5e52674a-429f-466d-a29a-4ab2ebfa8590","Spin-dependent boundary conditions for isotropic superconducting Green’s functions","Cottet, A.; Huertas-Hernando, D.; Belzig, W.; Nazarov, Y.V.","","2009","The quasiclassical theory of superconductivity provides the most successful description of diffusive heterostructures comprising superconducting elements, namely, the Usadel equations for isotropic Green’s functions. Since the quasiclassical and isotropic approximations break down close to interfaces, the Usadel equations have to be supplemented with boundary conditions for isotropic Green’s functions (BCIGF), which are not derivable within the quasiclassical description. For a long time, the BCIGF were available only for spin-degenerate tunnel contacts, which posed a serious limitation on the applicability of the Usadel description to modern structures containing ferromagnetic elements. In this paper, we close this gap and derive spin-dependent BCIGF for a contact encompassing superconducting and ferromagnetic correlations. This finally justifies several simplified versions of the spin-dependent BCIGF, which have been used in the literature so far. In the general case, our BCIGF are valid as soon as the quasiclassical isotropic approximation can be performed. However, their use requires the knowledge of the full scattering matrix of the contact, an information usually not available for realistic interfaces. In the case of a weakly polarized tunnel interface, the BCIGF can be expressed in terms of a few parameters, i.e., the tunnel conductance of the interface and five conductancelike parameters accounting for the spin dependence of the interface scattering amplitudes. In the case of a contact with a ferromagnetic insulator, it is possible to find explicit BCIGF also for stronger polarizations. The BCIGF derived in this paper are sufficiently general to describe a variety of physical situations and may serve as a basis for modeling realistic nanostructures.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:b161887e-cb76-4bcc-bf13-124581e6efe7","http://resolver.tudelft.nl/uuid:b161887e-cb76-4bcc-bf13-124581e6efe7","Multiple Nuclear Polarization States in a Double Quantum Dot","Danon, J.; Vink, I.T.; Koppens, F.H.L.; Nowack, K.C.; Vandersypen, L.M.K.; Nazarov, Y.V.","","2009","We observe multiple stable states of nuclear polarization and nuclear self-tuning over a large range of fields in a double quantum dot under conditions of electron spin resonance. The observations can be understood within an elaborated theoretical rate equation model for the polarization in each of the dots, in the limit of strong driving. This model also captures unusual features of the data, such as fast switching and a ‘‘wrong’’ sign of polarization. The results reported enable applications of this polarization effect, including accurate manipulation and control of nuclear fields.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of NanoScience","","","",""
"uuid:d4d20131-e6e1-4ac8-afc9-1e566a32e676","http://resolver.tudelft.nl/uuid:d4d20131-e6e1-4ac8-afc9-1e566a32e676","Statistics of Temperature Fluctuations in an Electron System out of Equilibrium","Heikkilä, T.T.; Nazarov, Y.V.","","2009","We study the statistics of the fluctuating electron temperature in a metallic island coupled to reservoirs via resistive contacts and driven out of equilibrium by either a temperature or voltage difference between the reservoirs. The fluctuations of temperature are well defined provided that the energy relaxation rate inside the island exceeds the rate of energy exchange with the reservoirs. We quantify these fluctuations in the regime beyond the Gaussian approximation and elucidate their dependence on the nature of the electronic contacts.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:98260310-f303-41c4-a897-4daea2676e58","http://resolver.tudelft.nl/uuid:98260310-f303-41c4-a897-4daea2676e58","Bistability in voltage-biased normal-metal/insulator/superconductor/insulator/normal-metal structures","Snyman, I.; Nazarov, Y.V.","","2009","As a generic example of a voltage-driven superconducting structure, we study a short superconductor connected to normal leads by means of low transparency tunnel junctions with a voltage bias V between the leads. The superconducting order parameter ? is to be determined self-consistently. We study the stationary states as well as the dynamics after a perturbation. The system is an example of a dissipative driven nonlinear system. Such systems generically have stationary solutions that are multivalued functions of the system parameters. It was discovered several decades ago that superconductors outside equilibrium conform to this general rule in that the order parameter as a function of driving may be multivalued. The main difference between these previous studies and the present work is the different relaxation mechanisms involved. This does not change the fact that there can be several stationary states at a given voltage. It can however affect their stability as well as the dynamics after a perturbation. We find a region in parameter space where there are two stable stationary states at a given voltage. These bistable states are distinguished by distinct values of the superconducting order parameter and of the current between the leads. We have evaluated (1) the multivalued superconducting order parameter ? at given V, (2) the current between the leads at a given V, and (3) the critical voltage at which superconductivity in the island ceases. With regards to dynamics, we find numerical evidence that only the stationary states are stable and that no complicated nonstationary regime can be induced by changing the voltage. This result is somewhat unexpected and by no means trivial, given the fact that the system is driven out of equilibrium. The response to a change in the voltage is always gradual even in the regime where changing the interaction strength induces rapid anharmonic oscillations of the order parameter.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:bc75f2e2-a268-40e0-911e-80fb1fe808bc","http://resolver.tudelft.nl/uuid:bc75f2e2-a268-40e0-911e-80fb1fe808bc","Elementary charge-transfer processes in mesoscopic conductors","Vanevi?, M.; Nazarov, Y.V.; Belzig, W.","","2008","We determine charge-transfer statistics in a quantum conductor driven by a time-dependent voltage and identify the elementary transport processes. At zero temperature unidirectional and bidirectional single-charge transfers occur. The unidirectional processes involve electrons injected from the source terminal due to excess dc bias voltage. The bidirectional processes involve electron-hole pairs created by time-dependent voltage bias. This interpretation is further supported by the charge-transfer statistics in a multiterminal beam-splitter geometry in which injected electrons and holes can be partitioned into different outgoing terminals. The probabilities of elementary processes can be probed by noise measurements: the unidirectional processes set the dc noise level, while bidirectional ones give rise to the excess noise. For ac voltage drive, the noise oscillates with increasing the driving amplitude. The decomposition of the noise into the contributions of elementary processes reveals the origin of these oscillations: the number of electron-hole pairs generated per cycle increases with increasing the amplitude. The decomposition of the noise into elementary processes is studied for different time-dependent voltages. The method we use is also suitable for systematic calculation of higher-order current correlators at finite temperature. We obtain current noise power and the third cumulant in the presence of time-dependent voltage drive. The charge-transfer statistics at finite temperature can be interpreted in terms of multiple-charge transfers with probabilities which depend on energy and temperature.","charge exchange; charge injection; mesoscopic systems; noise","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:a6e8fbb6-c7a2-4e0f-b72c-91532ec42169","http://resolver.tudelft.nl/uuid:a6e8fbb6-c7a2-4e0f-b72c-91532ec42169","Statistics of measurement of noncommuting quantum variables: Monitoring and purification of a qubit","Wei, H.; Nazarov, Y.V.","","2008","We address continuous weak linear quantum measurement and argue that it is best understood in terms of statistics of the outcomes of the linear detectors measuring a quantum system, for example, a qubit. We mostly concentrate on a setup consisting of a qubit and three independent detectors that simultaneously monitor three noncommuting operator variables, those corresponding to three pseudospin components of the qubit. We address the joint probability distribution of the detector outcomes and the qubit variables. When analyzing the distribution in the limit of big values of the outcomes, we reveal a high degree of correspondence between the three outcomes and three components of the qubit pseudospin after the measurement. This enables a highfidelity monitoring of all three components. We discuss the relation between the monitoring described and the algorithms of quantum information theory that use the results of the partial measurement. We develop a proper formalism to evaluate the statistics of continuous weak linear measurement. The formalism is based on Feynman-Vernon approach, roots in the theory of full counting statistics, and boils down to a Bloch-Redfield equation augmented with counting fields.","quantum computing; quantum theory; statistical distributions","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:2fd1bc89-71ce-4331-97c1-cc1bdf719d51","http://resolver.tudelft.nl/uuid:2fd1bc89-71ce-4331-97c1-cc1bdf719d51","Keldysh action of a multiterminal time-dependent scatterer","Snyman, I.; Nazarov, Y.V.","","2008","We present a derivation of the Keldysh action of a general multichannel time-dependent scatterer in the context of the Landauer–Büttiker approach. The action is a convenient building block in the theory of quantum transport. This action is shown to take a compact form that only involves the scattering matrix and reservoir Green’s functions. We derive two special cases of the general result, one valid when reservoirs are characterized by well-defined filling factors, the other when the scatterer connects two reservoirs. We illustrate its use by considering full counting statistics and the Fermi-edge singularity.","electron transport theory; Green's function methods","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:b6cd70b8-e8af-4608-82ce-a63fb92c7061","http://resolver.tudelft.nl/uuid:b6cd70b8-e8af-4608-82ce-a63fb92c7061","Nuclear Tuning and Detuning of the Electron Spin Resonance in a Quantum Dot: Theoretical Consideration","Danon, J.; Nazarov, Y.V.","","2008","We study nuclear spin dynamics in a quantum dot close to the conditions of electron spin resonance. We show that at a small frequency mismatch, the nuclear field detunes the resonance. Remarkably, at larger frequency mismatch, its effect is opposite: The nuclear system is bistable, and in one of the stable states, the field accurately tunes the electron spin splitting to resonance. In this state, the nuclear field fluctuations are strongly suppressed, and nuclear spin relaxation is accelerated.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience Delft","","","",""
"uuid:e65c19de-65f3-467c-bbd0-1f3fbf3c86d0","http://resolver.tudelft.nl/uuid:e65c19de-65f3-467c-bbd0-1f3fbf3c86d0","Mesoscopic fluctuations of spin currents","Nazarov, Y.V.","","2007","","","en","journal article","IOP","","","","","","","","Applied Sciences","","","","",""
"uuid:0d83b70b-e7a3-4c7b-a04d-2cc24c722294","http://resolver.tudelft.nl/uuid:0d83b70b-e7a3-4c7b-a04d-2cc24c722294","Elementary Events of Electron Transfer in a Voltage-Driven Quantum Point Contact","Vanevic, M.; Nazarov, Y.V.; Belzig, W.","","2007","","","en","journal article","American Physical review","","","","","","","","Applied Sciences","","","","",""
"uuid:966009dd-45cf-4f72-bf2c-5291234adc1e","http://resolver.tudelft.nl/uuid:966009dd-45cf-4f72-bf2c-5291234adc1e","Fully developed triplet proximity effect","Braude, V.; Nazarov, Y.V.","","2007","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:de4e4eeb-4c92-4070-8094-77566d059f80","http://resolver.tudelft.nl/uuid:de4e4eeb-4c92-4070-8094-77566d059f80","Strong feedback and current noise in nanoelectromechanical systems","Usmani, O.; Blanter, Y.M.; Nazarov, Y.V.","","2007","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:9a0cdab9-69f1-43fa-a414-efc4b19019b6","http://resolver.tudelft.nl/uuid:9a0cdab9-69f1-43fa-a414-efc4b19019b6","Polarization of a Charge Qubit Strongly Coupled to a Voltage-Driven Quantum Point Contact","Snyman, I.; Nazarov, Y.V.","","2007","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:f7aff0f7-4791-4594-bc8e-1c7b30f095f3","http://resolver.tudelft.nl/uuid:f7aff0f7-4791-4594-bc8e-1c7b30f095f3","Overscreening diamagnetism in cylindrical superconductor-normal metal-heterostructures","Belzig, W.; Bruder, C.; Nazarov, Y.V.","","2007","","","en","journal article","Springer","","","","","","","","Applied Sciences","","","","",""
"uuid:dff90e99-c002-47f1-bde3-acd380dd24df","http://resolver.tudelft.nl/uuid:dff90e99-c002-47f1-bde3-acd380dd24df","Nuclear Spin Effect in a Metallic Spin Valve","Danon, J.; Nazarov, Y.V.","","2006","We study electronic transport through a ferromagnet normal-metal ferromagnet system and we investigate the effect of hyperfine interaction between electrons and nuclei in the normal-metal part. A switching of the magnetization directions of the ferromagnets causes nuclear spins to precess. We show that the effect of this precession on the current through the system is large enough to be observed in experiment.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:d1490d89-7ccc-455b-9dfc-a08ec5375db6","http://resolver.tudelft.nl/uuid:d1490d89-7ccc-455b-9dfc-a08ec5375db6","GQ corrections in the circuit theory of quantum transport","Campagnano, G.; Nazarov, Y.V.","","2006","We develop a finite-element technique that allows one to evaluate correction of the order of GQ to various transport characteristics of arbitrary nanostructures. Common examples of such corrections are the weak-localization effect on conductance and universal conductance fluctuations. Our approach, however, is not restricted to conductance only. It allows one in the same manner to evaluate corrections to the noise characteristics, superconducting properties, strongly nonequilibrium transport, and transmission distribution. To enable such functionality, we consider Green’s functions of arbitrary matrix structure. We derive a finite-element technique from Cooperon and diffuson ladders for these Green’s functions. The derivation is supplemented with application examples. Those include transitions between ensembles and the Aharonov-Bohm effect.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:67af87d7-112d-4e43-8fa3-d8b89467ebf3","http://resolver.tudelft.nl/uuid:67af87d7-112d-4e43-8fa3-d8b89467ebf3","Quantum tunneling detection of two-photon and two-electron processes","Tobiska, J.; Danon, J.; Snyman, I.; Nazarov, Yu.V.","","2006","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:d4cef79e-eefc-412e-87b7-0873c0b03756","http://resolver.tudelft.nl/uuid:d4cef79e-eefc-412e-87b7-0873c0b03756","Electron transport in a double quantum dot governed by a nuclear magnetic field","Jouravlev, O.N.; Nazarov, Y.V.","","2006","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:88854ecc-6a06-45f0-94b6-85c8fb1d1249","http://resolver.tudelft.nl/uuid:88854ecc-6a06-45f0-94b6-85c8fb1d1249","Using a quantum dot as a high-frequency shot noise detector","Onac, E.; Balestro, F.; vanBeveren, L.H.W.; Hartmann, U.; Nazarov, Y.V.; Kouwenhoven, L.P.","","2006","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience Delft","","","",""
"uuid:1e5394c3-ab52-4ec0-bf16-371a248667ea","http://resolver.tudelft.nl/uuid:1e5394c3-ab52-4ec0-bf16-371a248667ea","Full counting statistics of noncommuting variables: The case of spin counts","Di Lorenzo, A.; Campagnano, G.; Nazarov, Y.V.","","2006","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience Delft","","","",""
"uuid:3f5dc893-1a6f-461f-8159-3f2ab822401a","http://resolver.tudelft.nl/uuid:3f5dc893-1a6f-461f-8159-3f2ab822401a","Proximity effect gaps in S/N/FI structures","Huertas-Hernando, D.; Nazarov, Y.V.","","2005","We study the proximity effect in hybrid structures consisting of superconductor and ferromagnetic insulator separated by a normal diffusive metal (S/N/FI structures). These stuctures were proposed to realize the absolute spin-valve effect. We pay special attention to the gaps in the density of states of the normal part. We show that the effect of the ferromagnet is twofold: It not only shifts the density of states but also provides suppression of the gap. The mechanism of this suppression is remarkably similar to that due to magnetic impurities. Our results are obtained from the solution of one-dimensional Usadel equation supplemented with boundary conditions for matrix current at both interfaces.","","en","journal article","EDP sciences - Springer","","","","","","","","Applied Sciences","kavli institute of nanoscience","","","",""
"uuid:bf5e8142-b6b8-4c05-a877-f7e1b4403cc2","http://resolver.tudelft.nl/uuid:bf5e8142-b6b8-4c05-a877-f7e1b4403cc2","Full current statistics in the regime of weak coulomb interaction","Bagrets, D.A.; Nazarov, Yu.V.","","2005","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:b1d8df27-02a0-4fcf-aced-e3a6bca10f2c","http://resolver.tudelft.nl/uuid:b1d8df27-02a0-4fcf-aced-e3a6bca10f2c","Coherent oscillations of current due to nuclear spins","Erlingsson, S.I.; Jouravlev, O.N.; Nazarov, Y.V.","","2005","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:c1935fe4-35dd-4e23-930d-e4e7c20cbb5f","http://resolver.tudelft.nl/uuid:c1935fe4-35dd-4e23-930d-e4e7c20cbb5f","Full counting statistics with spin-Sensitive detectors reveals spin singlets","Lorenzo, A.D.; Nazarov, Y.V.","","2005","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:0f65714b-fa55-4bc0-864f-70118111d8dd","http://resolver.tudelft.nl/uuid:0f65714b-fa55-4bc0-864f-70118111d8dd","Inelastic interaction corrections and universal relations for full counting statistics in a quantum contact","Tobiska, J.; Nazarov, Yu.V.","","2005","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:d8382a62-4e1a-40cf-94fb-ae5ddaab397b","http://resolver.tudelft.nl/uuid:d8382a62-4e1a-40cf-94fb-ae5ddaab397b","Towards experimental observation of full counting statistics","Nazarov, Y.V.; Tobiska, J.","","2004","We discuss how threshold detectors can be used for a direct measurement of the full counting statistics (FCS) of current fluctuations and how to implement Josephson junctions in this respect. We propose a scheme to characterize the full counting statistics from the current dependence of the escape rate measured. We illustrate the scheme with explicit results for tunnel, diffusive and quasi-ballistic mesoscopic conductors.","full counting statistics; quantum noise; Josephson juntion","en","conference paper","SPIE","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""
"uuid:a0601ceb-448e-4468-b9bf-8c6962947838","http://resolver.tudelft.nl/uuid:a0601ceb-448e-4468-b9bf-8c6962947838","Erratum: Theory of charge transport in diffusive normal metal/unconventional singlet superconductor contacts [Phys. Rev. B 69, 144519 (2004)]","Tanaka, Y.; Nazarov, Yu.V.; Golubov, A.A.; Kashiwaya, S.","","2004","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:084b48be-162a-43ad-9565-9c54163ab5f9","http://resolver.tudelft.nl/uuid:084b48be-162a-43ad-9565-9c54163ab5f9","Feedback of the electromagnetic environment on current and voltage fluctuations out of equilibrium","Kindermann, M.; Nazarov, Yu.V.; Beenakker, C.W.J.","","2004","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:2d4865f0-cbbe-4d88-bfa0-2274aadec92a","http://resolver.tudelft.nl/uuid:2d4865f0-cbbe-4d88-bfa0-2274aadec92a","Josephson Junctions as Threshold Detectors for Full Counting Statistics","Tobiska, J.; Nazarov, Yu.U.","","2004","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:41d0ab6a-cff3-442a-8e81-eca421462568","http://resolver.tudelft.nl/uuid:41d0ab6a-cff3-442a-8e81-eca421462568","Statistics of transmission eigenvalues for a disordered quantum point contact","Campagnano, G.; Jouravlev, O.N.; Blanter, Ya.M.; Nazarov, Yu.V.","","2004","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:eb67a1b6-1ec2-4d0a-b343-cb71cb414298","http://resolver.tudelft.nl/uuid:eb67a1b6-1ec2-4d0a-b343-cb71cb414298","Full counting statistics of Cooper pair shuttling","Romito, A.; Nazarov, Yu.V.","","2004","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:b101b128-b236-4d3b-ac45-1751bb40f2be","http://resolver.tudelft.nl/uuid:b101b128-b236-4d3b-ac45-1751bb40f2be","Andreev Reflection Eigenvalue Density in Mesoscopic Conductors","Samuelsson, P.; Belzig, W.; Nazarov, Yu.V.","","2004","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:1e24afc9-eb58-4261-9218-52588da79d2f","http://resolver.tudelft.nl/uuid:1e24afc9-eb58-4261-9218-52588da79d2f","Theory of charge transport in diffusive normal metal/unconventional singlet superconductor contacts","Tanaka, Y.; Nazarov, Yu.V.; A. A. Golubov, A.A.; Kashiwaya, S.","","2004","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:c7fee042-c3e0-4abd-821f-a35bdd015f74","http://resolver.tudelft.nl/uuid:c7fee042-c3e0-4abd-821f-a35bdd015f74","Full Counting Statistics of Spin Currents","Di Lorenzo, A.; Nazarov, Y.V","","2004","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:a1777a51-2f87-4b50-b45b-a082c5062b8d","http://resolver.tudelft.nl/uuid:a1777a51-2f87-4b50-b45b-a082c5062b8d","Evolution of localized electron spin in a nuclear spin environment","Erlingsson, S.I.; Nazarov, Y.V.","","2004","","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","","","","",""
"uuid:69999c89-a219-45c1-99be-9cc2ab5f6d8a","http://resolver.tudelft.nl/uuid:69999c89-a219-45c1-99be-9cc2ab5f6d8a","Phase Sensitive Shot Noise in an Andreev Interferometer","Reulet, B.; Kozhevnikov, A.A.; Prober, D.E.; W. Belzig, W.; Nazarov, Yu.V.","","2003","","","en","journal article","American Physcial Society","","","","","","","","","","","","",""
"uuid:751929e3-da61-4713-a29c-390054cd109b","http://resolver.tudelft.nl/uuid:751929e3-da61-4713-a29c-390054cd109b","Interaction Effects on Counting Statistics and the Transmission Distribution","Kindermann, M.; Nazarov, Yu.V.","","2003","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:dfb23583-f80f-4dd8-849a-fc1e68feb790","http://resolver.tudelft.nl/uuid:dfb23583-f80f-4dd8-849a-fc1e68feb790","Andreev Quantum Dots for Spin Manipulation","Chtchelkatchev, N.M.; Nazarov, Yu.V.","","2003","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:478180ed-494a-4285-ab85-cb09c6a32526","http://resolver.tudelft.nl/uuid:478180ed-494a-4285-ab85-cb09c6a32526","Enhanced Shot Noise in Resonant Tunneling via Interacting Localized States","Safonov, S.S.; Savchenko, A.K.; Safonov, S.S.; Savchenko, A.K.; Bagrets, D.A.; Jouravlev, O.N.; Nazarov, Y.V.; Linfield, E.H.; Ritchie, D.A.","","2003","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:32c91f9a-3026-4937-b223-f0f9dfa37613","http://resolver.tudelft.nl/uuid:32c91f9a-3026-4937-b223-f0f9dfa37613","Full counting statistics of charge transfer in Coulomb blockade systems","Bagrets, D.A.; Nazarov, Yu.V.","","2003","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:5fec98a5-7369-4dc6-a43b-78080f8d7c51","http://resolver.tudelft.nl/uuid:5fec98a5-7369-4dc6-a43b-78080f8d7c51","Circuit Theory of Unconventional Superconductor Junctions","Tanaka, Y.; Nazarov, Yu.V.; Kashiwaya, S.","","2003","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:eafa3d9b-b1a2-4784-8899-d864ce9e5661","http://resolver.tudelft.nl/uuid:eafa3d9b-b1a2-4784-8899-d864ce9e5661","Temperature-Dependent Third Cumulant of Tunneling Noise","Beenakker, C.W.J.; Kindermann, M.; Nazarov, Yu.V.","","2003","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:1915d08f-6d54-4e3f-ac5f-dc35beaac727","http://resolver.tudelft.nl/uuid:1915d08f-6d54-4e3f-ac5f-dc35beaac727","Resonant Tunneling of Interacting Electrons in a One-Dimensional Wire","Nazarov, Yu.V.; Glazman, L.I.","","2003","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:9abb7146-cf01-469e-b1a6-2d304ddd8736","http://resolver.tudelft.nl/uuid:9abb7146-cf01-469e-b1a6-2d304ddd8736","Distribution of Voltage Fluctuations in a Current-Biased Conductor","Kindermann, M.; Nazarov, Yu.V.; Beenakker, C.W.J.","","2003","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:aeba6b64-bc77-418d-8155-56e2c71e9fa1","http://resolver.tudelft.nl/uuid:aeba6b64-bc77-418d-8155-56e2c71e9fa1","Electromagnetic Aharonov-Bohm effect in a two-dimensional electron gas ring","van der Wiel, W.G.; Nazarov, Yu.V.; De Franceschi, S.; Fujisawa, T.; Elzerman, J.M.; Huizeling, E.W.G.M.; Tarucha, S.; Kouwenhoven, L.P.","","2003","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:3da9dc38-759a-422d-8072-2bd99608fef4","http://resolver.tudelft.nl/uuid:3da9dc38-759a-422d-8072-2bd99608fef4","Negative magnetoresistance in Andreev interferometers","Belzig, W.; Shaikhaidarov, R.; Petrashov, V.V.; Nazarov, Yu.V.","","2002","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:a8c49cc0-f3c0-4f50-8b15-6420e19a5651","http://resolver.tudelft.nl/uuid:a8c49cc0-f3c0-4f50-8b15-6420e19a5651","Manipulation of photon statistics of highly degenerate incoherent radiation","Kindermann, M.; Nazarov, Yu.V.; Beenakker, C.W.J.","","2002","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:24ae8ed5-5de0-462e-b208-9de4a4b11d8c","http://resolver.tudelft.nl/uuid:24ae8ed5-5de0-462e-b208-9de4a4b11d8c","Hyperfine-mediated transitions between a Zeeman split doublet in GaAs quantum dots: The role of the internal field","Erlingsson, S.I.; Nazarov, Y.V.","","2002","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:21f5b927-eba5-473b-9dd3-93c44b56db26","http://resolver.tudelft.nl/uuid:21f5b927-eba5-473b-9dd3-93c44b56db26","Multiparameter scaling of the Kondo effect in quantum dots with an even number of electrons","Eto, M.; Nazarov, Y.V.","","2002","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:1427a31e-2d40-45fa-bfc6-5a66b1ed6d39","http://resolver.tudelft.nl/uuid:1427a31e-2d40-45fa-bfc6-5a66b1ed6d39","Circuit theory for full counting statistics in multiterminal circuits","Nazarov, Yu.V.; Bagrets, D.A.","","2002","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:4e9cbc15-6e46-49ca-a391-0a3006daa969","http://resolver.tudelft.nl/uuid:4e9cbc15-6e46-49ca-a391-0a3006daa969","Superconducting proximity effect in clean ferromagnetic layers","Zareyan, M.; Belzig, W.; Nazarov, Yu.V.","","2002","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:4e9c1a19-1a8c-4b84-9f77-eb091bf2e5ba","http://resolver.tudelft.nl/uuid:4e9c1a19-1a8c-4b84-9f77-eb091bf2e5ba","Absolute spin-valve effect with superconducting proximity structures","Huertas-Hernando, D.; Nazarov, Yu.V.; Belzig, W.","","2002","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:39548eb1-f250-4ea6-84cd-399339e047c6","http://resolver.tudelft.nl/uuid:39548eb1-f250-4ea6-84cd-399339e047c6","Nucleus-mediated spin-flip transitions in GaAs quantum dots","Erlingsson, S.I.; Nazarov, Y.V.; Fal'ko, V.I.","","2001","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:520d7396-29e8-430f-a2db-8d1c991b7897","http://resolver.tudelft.nl/uuid:520d7396-29e8-430f-a2db-8d1c991b7897","Oscillations of Andreev states in clean ferromagnetic films","Zareyan, M.; Belzig, W.; Nazarov, Yu.V.","","2001","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:27fda23d-3eda-4e78-9ad7-3897f51d454f","http://resolver.tudelft.nl/uuid:27fda23d-3eda-4e78-9ad7-3897f51d454f","Full current statistics in diffusive normal-superconductor structures","Belzig, W.; Nazarov, Yu.V.","","2001","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:6624ae01-878a-4cbc-ac69-152103a61194","http://resolver.tudelft.nl/uuid:6624ae01-878a-4cbc-ac69-152103a61194","Full counting statistics of electron transfer between superconductors","Belzig, W.; Nazarov, Yu.V.","","2001","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:745e6817-c2ee-44cb-b9e5-25ec769d64e5","http://resolver.tudelft.nl/uuid:745e6817-c2ee-44cb-b9e5-25ec769d64e5","Coherent and incoherent pumping of electrons in double quantum dots","Hazelzet, B.L.; Wegewijs, M.R.; Stoof, T.H.; Nazarov, Yu.V.","","2001","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:c2f6096f-1c94-49e8-a7c8-4e353efd979b","http://resolver.tudelft.nl/uuid:c2f6096f-1c94-49e8-a7c8-4e353efd979b","Mean-field theory of the Kondo effect in quantum dots with an even number of electrons","Eto, M.; Nazarov, Y.V.","","2001","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:38e4541b-790a-4eed-9631-a910a55dbaa5","http://resolver.tudelft.nl/uuid:38e4541b-790a-4eed-9631-a910a55dbaa5","Spin-flip transitions between Zeeman sublevels in semiconductor quantum dots","Khaetskii, A.V.; Nazarov, Y.V.","","2001","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:5d538e78-6594-444a-a9dd-d8df1796cfe3","http://resolver.tudelft.nl/uuid:5d538e78-6594-444a-a9dd-d8df1796cfe3","Spin-accumulation and Andreev-reflection in a mesoscopic ferromagnetic wire","Belzig, W.; Nazarov, Y.V.; Bauer, G.E.W.","","2000","The electron transport though ferromagnetic metal-superconducting hybrid devices is considered in the non-equilibrium Green's function formalism in the quasiclassical approximation. Attention if focused on the limit in which the exchange splitting in the ferromagnet is much larger than the superconducting energy gap. Transport properties are then governed by an interplay between spin-accumulation close to the interface and Andreev reflection at the interface. We find that the resistance can either be enhanced or lowered in comparison to the normal case and can have a non-monotonic temperature and voltage dependence. In the non-linear voltage regime electron heating effects may govern the transport properties, leading to qualitative different behaviour than in the absence of heating effects. Recent experimental results on the effect of the superconductor on the conductance of the ferromagnet can be understood by our results for the energy-dependent interface resistance together with effects of spin- accumulation without invoking long range pairing correlations in the ferromagnet","Superconductivity","en","journal article","IOP Publishing","","","","","","","","Applied Sciences","","","","",""
"uuid:b4482575-a3f1-4b20-a161-44ad269834a3","http://resolver.tudelft.nl/uuid:b4482575-a3f1-4b20-a161-44ad269834a3","Enhancement of kondo effect in quantum dots with an even number of electrons","Eto, M.; Nazarov, Y.V.","","2000","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:1433a72a-63a2-4f02-9d43-8ee85e6e044a","http://resolver.tudelft.nl/uuid:1433a72a-63a2-4f02-9d43-8ee85e6e044a","Finite-element theory of transport in ferromagnet-normal metal systems","Brataas, A.; Nazarov, Yu.V.; Bauer, G.E.W.","","2000","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:4f8b3e45-08ce-4558-b502-32f246490571","http://resolver.tudelft.nl/uuid:4f8b3e45-08ce-4558-b502-32f246490571","Universality of the Kondo effect in a quantum dot out of equilibrium","Kaminski, A.; Nazarov, Yu.V.; Glazman, L.I.","","2000","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:1375b09e-d7b3-4ed3-85f3-fb8c98766f62","http://resolver.tudelft.nl/uuid:1375b09e-d7b3-4ed3-85f3-fb8c98766f62","Spin relaxation in semiconductor quantum dots","Khaetskii, A.V.; Nazarov, Y.V.","","2000","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:3aa2cc8e-f643-4a73-a881-5dc030935bec","http://resolver.tudelft.nl/uuid:3aa2cc8e-f643-4a73-a881-5dc030935bec","Conductance modulation by spin precession in noncollinear ferromagnet normal-metal ferromagnet systems","Huertas Hernando, D.; Nazarov, Yu.V.; Brataas, A.; Bauer, G.E.W.","","2000","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:82f5364d-c2ae-4079-a82a-01d2fbd1f654","http://resolver.tudelft.nl/uuid:82f5364d-c2ae-4079-a82a-01d2fbd1f654","Spin accumulation and Andreev reflection in a mesoscopic ferromagnetic wire","Belzig, W.; Brataas, A.; Nazarov, Yu.V.; Bauer, G.E.W.","","2000","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:d8a1e443-cfab-41cf-a9e9-394ffa6f31d1","http://resolver.tudelft.nl/uuid:d8a1e443-cfab-41cf-a9e9-394ffa6f31d1","Suppression of the kondo effect in a quantum dot by external irradiation","Kaminski, A.; Nazarov, Yu.V.; Glazman, L.I.","","1999","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:c4b8a301-8f82-4ce7-afa9-11585ebeeda3","http://resolver.tudelft.nl/uuid:c4b8a301-8f82-4ce7-afa9-11585ebeeda3","Skyrmions in disordered heterostructures","Nederveen, A.J.; Nazarov, Y.V.","","1999","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:9a11add5-535e-4a0e-a869-48b4a185279f","http://resolver.tudelft.nl/uuid:9a11add5-535e-4a0e-a869-48b4a185279f","Coulomb drag in intermediate magnetic fields","Khaetskii, A.V.; Nazarov, Y.V.","","1999","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:800e3cdd-33c2-4490-838a-f34c8ebb5b5d","http://resolver.tudelft.nl/uuid:800e3cdd-33c2-4490-838a-f34c8ebb5b5d","Resonant tunneling through linear arrays of quantum dots","Wegewijs, M.R.; Nazarov, Yu.V.","","1999","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:a42b58b3-049a-4e4d-a0bf-b1e855d00cbc","http://resolver.tudelft.nl/uuid:a42b58b3-049a-4e4d-a0bf-b1e855d00cbc","Coulomb blockade without tunnel junctions","Nazarov, Y.V.","","1999","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:de8325e0-659a-490c-99d3-7bc58de1943d","http://resolver.tudelft.nl/uuid:de8325e0-659a-490c-99d3-7bc58de1943d","Spin accumulation in small ferromagnetic double-barrier junctions","Brataas, A.; Nazarov, Yu.V.; Inoue, J.; Bauer, G.E.W.","","1999","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:17f62580-ec35-493f-b15e-ef105d3d0b9f","http://resolver.tudelft.nl/uuid:17f62580-ec35-493f-b15e-ef105d3d0b9f","Giant higher harmonic generation in mesoscopic metal wires and rings interrupted by tunnel junctions","Van Oudenaarden, A.; Nazarov, Yu.V.; Mooij, J.E.","","1998","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:8e84ccf4-3725-410f-af42-c554781694af","http://resolver.tudelft.nl/uuid:8e84ccf4-3725-410f-af42-c554781694af","Density of states and the energy gap in Andreev billiards","Lodder, A.; Nazarov, Yu.V.","","1998","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:7b281d4c-b522-439f-959f-e341f5b3399f","http://resolver.tudelft.nl/uuid:7b281d4c-b522-439f-959f-e341f5b3399f","Current drag in capacitively coupled luttinger constrictions","Nazarov, Y.V.; Averin, D.V.","","1998","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:3d4e2089-bcbd-430c-ac10-95edd029416e","http://resolver.tudelft.nl/uuid:3d4e2089-bcbd-430c-ac10-95edd029416e","Changes in the magnetization of a double quantum dot","Oosterkamp, T.H.; Godijn, S.F.; Uilenreef, M.J.; Nazarov, Y.V.; van der Vaart, N.C.; Kouwenhoven, L.P.","","1998","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:78498ed5-2fa9-4912-86d7-3486916fb8c1","http://resolver.tudelft.nl/uuid:78498ed5-2fa9-4912-86d7-3486916fb8c1","Quantum phase transition in the skyrmion lattice","Nazarov, Yu.V.; Khaetskii, A.V.","","1998","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:a005b6dc-5c6e-40e8-a1a4-93a62401a3ff","http://resolver.tudelft.nl/uuid:a005b6dc-5c6e-40e8-a1a4-93a62401a3ff","Time-resolved tunneling in the quantum Hall regime","van der Vaart, N.C.; Kouwenhoven, L.P.; de Ruyter van Steveninck, M.P.; Nazarov, Y.V.; Harmans, C.J.P.M.; Foxon, C.T.","","1997","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:de78d462-f213-4d7a-8e41-41a775799fe1","http://resolver.tudelft.nl/uuid:de78d462-f213-4d7a-8e41-41a775799fe1","Reentrant behavior in the superconducting phase-dependent resistance of a disordered two-dimensional electron gas","den Hartog, S.G.; van Wees, B.J.; Klapwijk, T.M.; Nazarov, Yu.V.; Borghs, G.","","1997","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:8bcdddac-be5b-488a-a122-31b9f3a7bc14","http://resolver.tudelft.nl/uuid:8bcdddac-be5b-488a-a122-31b9f3a7bc14","Conductance fluctuations in a metallic wire interrupted by a tunnel junction","van Oudenaarden, A.; Devoret, M.H.; Visscher, E.H.; Nazarov, Yu.V.; Mooij, J.E.","","1997","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:85c1300d-9feb-402f-986f-49bd5b8bfbcc","http://resolver.tudelft.nl/uuid:85c1300d-9feb-402f-986f-49bd5b8bfbcc","Giant Andreev backscattering through a quantum point contact coupled via a disordered two-dimensional electron gas to superconductors","Den Hartog, S.G.; van Wees, B.J.; Nazarov, Yu.V.; Klapwijk, T.M.; Borghs, G.","","1997","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:a8d22040-1973-4009-855d-a5dbd2906ca1","http://resolver.tudelft.nl/uuid:a8d22040-1973-4009-855d-a5dbd2906ca1","Fluctuations of transmission distribution in disordered conductors","Nazarov, Y.V.","","1996","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:4bef39c7-fb42-4d93-b001-6de2cae30e63","http://resolver.tudelft.nl/uuid:4bef39c7-fb42-4d93-b001-6de2cae30e63","Time-dependent resonant tunneling via two discrete states","Stoof, T.H.; Nazarov, Yu.V.","","1996","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:d96f1e09-092f-4f3d-b064-1ff2b18132eb","http://resolver.tudelft.nl/uuid:d96f1e09-092f-4f3d-b064-1ff2b18132eb","Universal excess noise in resonant tunneling via strongly localized states","Nazarov, Y.V.; Struben, J.J.R.","","1996","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:98f2596e-5404-4d7e-94e1-38606fa1d07b","http://resolver.tudelft.nl/uuid:98f2596e-5404-4d7e-94e1-38606fa1d07b","Kinetic-equation approach to diffusive superconducting hybrid devices","Stoof, T.H.; Nazarov, Yu.V.","","1996","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:1caf0010-27e1-4bdc-97a0-fc5fb206e463","http://resolver.tudelft.nl/uuid:1caf0010-27e1-4bdc-97a0-fc5fb206e463","Flux effect in superconducting hybrid Aharonov-Bohm rings","Stoof, T.H.; Nazarov, Yu.V.","","1996","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:b3c89530-7da1-4cb2-bf7d-56990613fa84","http://resolver.tudelft.nl/uuid:b3c89530-7da1-4cb2-bf7d-56990613fa84","Diffusive conductors as Andreev interferometers","Nazarov, Y.V.; Stoof, T.H.","","1996","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:d764eb44-3cea-438d-a133-b3f6de4aec17","http://resolver.tudelft.nl/uuid:d764eb44-3cea-438d-a133-b3f6de4aec17","Weak localization and the transmission matrix","Nazarov, Y.V.","","1995","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:d56c9d3e-b3a0-41f1-b914-5a50888bb7b3","http://resolver.tudelft.nl/uuid:d56c9d3e-b3a0-41f1-b914-5a50888bb7b3","Resonant tunneling through two discrete energy states","van der Vaart, N.C.; Godijn, S.F.; Nazarov, Y.V.; Harmans, C.J.P.M.; Mooij, J.E.; Molenkamp, L.W.; Foxon, C.T.","","1995","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:2d957921-2e8e-40b6-8d0e-4ada9c39c08a","http://resolver.tudelft.nl/uuid:2d957921-2e8e-40b6-8d0e-4ada9c39c08a","Ballistic conductance of composite fermions","Khaetskii, A.; Nazarov, Yu.V.; Bauer, G.E.W.","","1995","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:409beae4-2d6d-42e7-b769-5fdd302e5df6","http://resolver.tudelft.nl/uuid:409beae4-2d6d-42e7-b769-5fdd302e5df6","Incompressible quantum Hall states in Josephson-junction arrays","Odintsov, A.A.; Nazarov, Yu.V.","","1995","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:e1f63e48-9300-4b27-aeb1-19912350bac8","http://resolver.tudelft.nl/uuid:e1f63e48-9300-4b27-aeb1-19912350bac8","Limits of universality in disordered conductors","Nazarov, Y.V.","","1994","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:51ea3d72-b383-4ea1-8586-fc7ca517eadb","http://resolver.tudelft.nl/uuid:51ea3d72-b383-4ea1-8586-fc7ca517eadb","Wigner molecule on the top of a quantum dot","Nazarov, Y.V.; Khaetskii, A.V.","","1994","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:b9e015d0-90ef-4b4a-8c2f-e27907af6feb","http://resolver.tudelft.nl/uuid:b9e015d0-90ef-4b4a-8c2f-e27907af6feb","Circuit theory of Andreev conductance","Nazarov, Y.V.","","1994","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:723c1f80-da27-4a74-a5da-fbbe119f6ab9","http://resolver.tudelft.nl/uuid:723c1f80-da27-4a74-a5da-fbbe119f6ab9","Time-resolved tunneling of single electrons between Landau levels in a quantum dot","van der Vaart, N.C.; de Ruyter van Steveninck, M.P.; Kouwenhoven, L.P.; Johnson, A.T.; Nazarov, Y.V.; Harmans, C.J.P.M.; Foxon, C.T.","","1994","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:4f804e03-3c94-43e5-b8cb-e817739c6d07","http://resolver.tudelft.nl/uuid:4f804e03-3c94-43e5-b8cb-e817739c6d07","Photon-assisted tunneling through a quantum dot","Kouwenhoven, L.P.; Jauhar, S.; McCormick, K.; Dixon, D.; McEuen, P.L.; Nazarov, Yu.V.; van der Vaart, N.C.; Foxon, C.T.","","1994","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:8c7be6f3-906d-40c2-8f27-5698eed8dfae","http://resolver.tudelft.nl/uuid:8c7be6f3-906d-40c2-8f27-5698eed8dfae","Influence of the electrodynamic environment on electron tunneling at finite traversal time","Nazarov, Yu.V.","","1991","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:434e580a-c420-46ca-8343-746e5b1ee39f","http://resolver.tudelft.nl/uuid:434e580a-c420-46ca-8343-746e5b1ee39f","Photovoltaic effect in quantum adiabatic transport as a way to pump electrons","Hekking, F.; Nazarov, Yu.V.","","1991","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:bc70d295-0081-4918-911b-789583e786d5","http://resolver.tudelft.nl/uuid:bc70d295-0081-4918-911b-789583e786d5","Pauli pump for electrons","Hekking, F.; Nazarov, Yu.V.","","1991","","","en","journal article","American Physical Society","","","","","","","","","","","","",""
"uuid:33858592-9fa0-492e-b234-586558ac3d69","http://resolver.tudelft.nl/uuid:33858592-9fa0-492e-b234-586558ac3d69","Topological Properties of Superconducting Junctions","Pikulin, D.I.; Nazarov, Y.V.","","","Motivated by recent developments in the field of one-dimensional topological superconductors, we investigate the topological properties of s-matrix of generic superconducting junctions where dimension should not play any role. We argue that for a finite junction the s-matrix is always topologically trivial. We resolve an apparent contradiction with the previous results by taking into account the low-energy resonant poles of s-matrix. Thus no common topological transition occurs in a finite junction. We reveal a transition of a different kind that concerns the configuration of the resonant poles.","","en","journal article","Springer-Verlag","","","","","","","","Applied Sciences","Quantum Nanoscience","","","",""
"uuid:f8afa0c3-ab6b-4b2c-b198-655786be8c7e","http://resolver.tudelft.nl/uuid:f8afa0c3-ab6b-4b2c-b198-655786be8c7e","Pauli spin blockade in the presence of strong spin-orbit coupling","Danon, J.; Nazarov, Y.V.","","","We study electron transport in a double quantum dot in the Pauli spin blockade regime in the presence of strong spin-orbit coupling. The effect of spin-orbit coupling is incorporated into a modified interdot tunnel coupling. We elucidate the role of the external magnetic field, the nuclear fields in the dots, and the spin relaxation. We find qualitative agreement with experimental observations, and we propose a way to extend the range of magnetic fields in which blockade can be observed.","","en","journal article","American Physical Society","","","","","","","","Applied Sciences","Kavli Institute of Nanoscience","","","",""