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Author Lauwens, J.; Kerkhofs, L.; Sala, A.; Sorée, B. pdf  doi
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  Title Superconductor-semiconductor hybrid capacitance with a nonlinear charge-voltage profile Type A1 Journal article
  Year (down) 2024 Publication Journal of physics: D: applied physics Abbreviated Journal  
  Volume 57 Issue 2 Pages 025301-25309  
  Keywords A1 Journal article; Condensed Matter Theory (CMT)  
  Abstract Electronic devices that work in the quantum regime often employ hybrid nanostructures to bring about a nonlinear behaviour. The nonlinearity that these can provide has proven to be useful, in particular, for applications in quantum computation. Here we present a hybrid device that acts as a capacitor with a nonlinear charge-voltage relation. The device consists of a nanowire placed between the plates of a coplanar capacitor, with a co-parallel alignment. At low temperatures, due to the finite density of states on the nanowire, the charge distribution in the capacitor is uneven and energy-dependent, resulting in a charge-dependent effective capacitance. We study this system analytically and numerically, and show that the nonlinearity of the capacitance is significant enough to be utilized in circuit quantum electrodynamics. The resulting nonlinearity can be switched on, modulated, and switched off by an external potential, thus making this capacitive device highly versatile for uses in quantum computation.  
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  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Wos 001082883200001 Publication Date 2023-09-29  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0022-3727 ISBN Additional Links UA library record; WoS full record  
  Impact Factor 3.4 Times cited Open Access Not_Open_Access  
  Notes Approved Most recent IF: 3.4; 2024 IF: 2.588  
  Call Number UA @ admin @ c:irua:200300 Serial 9099  
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