Searched for: author%3A%22Pfaff%2C+W.%22
(1 - 8 of 8)
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de Jong, D. (author), Prosko, C.G. (author), Waardenburg, D.M.A. (author), Han, L. (author), Malinowski, F.K. (author), Krogstrup, P. (author), Kouwenhoven, Leo P. (author), Koski, J.V. (author), Pfaff, W. (author)
Superconducting resonators enable fast characterization and readout of mesoscopic quantum devices. Finding ways to perform measurements of interest on such devices using resonators only is therefore of great practical relevance. We report an experimental investigation of an InAs nanowire multiquantum dot device by probing gigahertz resonators...
journal article 2021
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Pita-Vidal, Marta (author), Bargerbos, A. (author), Yang, C. (author), van Woerkom, D.J. (author), Pfaff, W. (author), Haider, S.N. (author), Krogstrup, Peter (author), Kouwenhoven, Leo P. (author), de Lange, G. (author), Kou, A. (author)
Hybrid superconducting circuits, which integrate nonsuperconducting elements into a circuit quantum electrodynamics (cQED) architecture, expand the possible applications of cQED. Building hybrid circuits that work in large magnetic fields presents even further possibilities, such as the probing of spin-polarized Andreev bound states and the...
journal article 2020
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van Veen, J. (author), de Jong, D. (author), Han, L. (author), Prosko, C.G. (author), Krogstrup, P. (author), Watson, J.D. (author), Kouwenhoven, Leo P. (author), Pfaff, W. (author)
We report direct detection of charge tunneling between a quantum dot and a superconducting island through radio-frequency gate sensing. We are able to resolve spin-dependent quasiparticle tunneling as well as two-particle tunneling involving Cooper pairs. The quantum dot can act as an RF-only sensor to characterize the superconductor addition...
journal article 2019
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de Jong, D. (author), van Veen, J. (author), Binci, L. (author), Singh, A. (author), Krogstrup, P. (author), Kouwenhoven, Leo P. (author), Pfaff, W. (author), Watson, J.D. (author)
Dispersive sensing is a powerful technique that enables scalable and high-fidelity readout of solid-state quantum bits. In particular, gate-based dispersive sensing has been proposed as the readout mechanism for future topological qubits, which can be measured by single electrons tunneling through zero-energy modes. The development of such a...
journal article 2019
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Pfaff, W. (author)
This thesis presents a set of experiments that explore the possible realisation of a macroscopic quantum network based on solid-state quantum bits. Such a quantum network would allow for studying quantum mechanics on large scales (meters, or even kilometers), and can open new possibilities for applications in quantum information processing. A...
doctoral thesis 2013
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Pfaff, W. (author), Vos, A. (author), Hanson, R. (author)
Metal nanostructures can be used to harvest and guide the emission of single photon emitters on-chip via surface plasmon polaritons. In order to develop and characterize photonic devices based on emitter-plasmon hybrid structures, a deterministic and scalable fabrication method for such structures is desirable. Here, we demonstrate deterministic...
journal article 2013
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Van der Sar, T. (author), Hagemeier, J. (author), Pfaff, W. (author), Heeres, E. (author), Thon, S. (author), Kim, H. (author), Petroff, P. (author), Oosterkamp, T. (author), Bouwmeester, D. (author), Hanson, R. (author)
Single quantum emitters can be coupled to photonic crystal (PC) cavities by placing their host nanoparticles into the cavity field. We describe fabrication, characterization, and tuning of gallium-phosphide PC cavities that resonate in the visible, and simulations and measurements of the effect of a nanoparticle on the optical properties of...
journal article 2012
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Van der Sar, T. (author), Hagemeier, J. (author), Pfaff, W. (author), Heeres, E.C. (author), Thon, S.M. (author), Kim, H. (author), Petroff, P.M. (author), Oosterkamp, T.H. (author), Bouwmeester, D. (author), Hanson, R. (author)
Controlling the interaction of a single quantum emitter with its environment is a key challenge in quantum optics. Here, we demonstrate deterministic coupling of single nitrogen-vacancy (NV) centers to high-quality photonic crystal cavities. We preselect single NV centers and position their 50-nm-sized host nanocrystals into the mode maximum of...
journal article 2011
Searched for: author%3A%22Pfaff%2C+W.%22
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