Searched for: author:"Li, R."
(1 - 9 of 9)
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Hendrickx, N.W. (author), Tagliaferri, M.L.V. (author), Li, R. (author), Franke, D.P. (author), Sammak, A. (author), Brinkman, A. (author), Scappucci, G. (author), Veldhorst, M. (author)
We fabricate Josephson field-effect transistors in germanium quantum wells contacted by superconducting aluminum and demonstrate supercurrents carried by holes that extend over junction lengths of several micrometers. In superconducting quantum point contacts we observe discretization of supercurrent, as well as Fabry-PĂ©rot resonances,...
journal article 2019
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Liles, S. D. (author), Li, R. (author), Yang, C. H. (author), Hudson, F. E. (author), Veldhorst, M. (author), Dzurak, Andrew S. (author), Hamilton, A. R. (author)
Valence band holes confined in silicon quantum dots are attracting significant attention for use as spin qubits. However, experimental studies of single-hole spins have been hindered by challenges in fabrication and stability of devices capable of confining a single hole. To fully utilize hole spins as qubits, it is crucial to have a detailed...
journal article 2018
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Hendrickx, N.W. (author), Franke, D.P. (author), Sammak, A. (author), Kouwenhoven, M. (author), Sabbagh, D. (author), Yeoh, L.A. (author), Li, R. (author), Tagliaferri, M.L.V. (author), Virgilio, Michele (author), Capellini, Giovanni (author), Scappucci, G. (author), Veldhorst, M. (author)
Superconductors and semiconductors are crucial platforms in the field of quantum computing. They can be combined to hybrids, bringing together physical properties that enable the discovery of new emergent phenomena and provide novel strategies for quantum control. The involved semiconductor materials, however, suffer from disorder, hyperfine...
journal article 2018
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Petit, L. (author), Boter, J.M. (author), Eenink, H.G.J. (author), Droulers, G. (author), Tagliaferri, M.L.V. (author), Li, R. (author), Franke, D.P. (author), Singh, K. J. (author), Clarke, J. S. (author), Schouten, R.N. (author), Dobrovitski, V.V. (author), Vandersypen, L.M.K. (author), Veldhorst, M. (author)
We investigate the magnetic field and temperature dependence of the single-electron spin lifetime in silicon quantum dots and find a lifetime of 2.8 ms at a temperature of 1.1 K. We develop a model based on spin-valley mixing and find that Johnson noise and two-phonon processes limit relaxation at low and high temperature, respectively. We...
journal article 2018
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Li, R. (author), Petit, L. (author), Franke, D.P. (author), Dehollain Lorenzana, J.P. (author), Helsen, J. (author), Steudtner, M. (author), Thomas, Nicole K. (author), Wehner, S.D.C. (author), Vandersypen, L.M.K. (author), Veldhorst, M. (author)
The spin states of single electrons in gate-defined quantum dots satisfy crucial requirements for a practical quantum computer. These include extremely long coherence times, high-fidelity quantum operation, and the ability to shuttle electrons as a mechanism for on-chip flying qubits. To increase the number of qubits to the thousands or...
journal article 2018
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Li, R. (author), Yu, Qian (author), Wang, Yunwei (author), Wang, Zhengbing (author), Gao, Shu (author), Flemming, Burg (author)
The above-ground biomass of Spartina alterniflora salt marsh meadows is influenced by numerous interacting factors, among them elevation, tidal range and inundation duration. Bio-geomorphological models make use of either linear or quadratic equations, but it is important to be aware that the variables are area specific and hence not generic. In...
journal article 2018
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Li, R. (author), Verhagen, W.J.C. (author), Curran, R. (author)
Prognostic and Health Management (PHM) describes a set of capabilities that enable effective and efficient approaches towards data analysis for fault diagnostics and failure prognostics. This can support decision making related to health management, sustainment and operation of critical systems, such as aviation systems. As a result of the...
conference paper 2018
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Wang, Y. (author), Chen, W. (author), Wang, H. (author), Li, R. (author)
In this paper, a steady 3D numerical study has been conducted on a 90 mm counter rotating lift fan to investigate its aerodynamic performance. The effect of axial distance between the fans and rotor speed are studied. A low thrust generation has been revealed from the simulation results due to the unfavourable working condition for the upstream...
conference paper 2014
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Li, R (author)
doctoral thesis 2008
Searched for: author:"Li, R."
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