Switching time of a double barrier josephson junction based qubit gate

Serhii Shafraniuk*, I. P. Nevirkovets, J. Ketterson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The switching time of a qubit gate consisting of a three-terminal double-barrier SINIS junction is examined. The quantum states |0〉 and |1〉 are associated with conventional and unconventional Josephson currents. The switching time, τsw, and decoherence (dephasing) time, τφ, of such a device are computed. The mentioned switching characteristics are closely related to the junction geometry and to the recombination time of quasiparticles from the narrow Andreev bound state level into the superfluid condensate.

Original languageEnglish (US)
Title of host publication2003 Nanotechnology Conference and Trade Show - Nanotech 2003
EditorsM. Laudon, B. Romanowicz
Pages168-171
Number of pages4
Volume2
StatePublished - Dec 1 2003
Event2003 Nanotechnology Conference and Trade Show - Nanotech 2003 - San Francisco, CA, United States
Duration: Feb 23 2003Feb 27 2003

Other

Other2003 Nanotechnology Conference and Trade Show - Nanotech 2003
CountryUnited States
CitySan Francisco, CA
Period2/23/032/27/03

Keywords

  • Andreev bound state
  • Double-barrier junction
  • Josephson current
  • Qubit

ASJC Scopus subject areas

  • Engineering(all)

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