Effect of quantum fluctuations on even-odd energy difference in a Cooper-pair box

Simple item page
dc.creatorLutchyn, R. M.
dc.date2006-12-19
dc.date2007-03-16
dc.date.accessioned2026-07-07T08:05:41Z
dc.date.available2026-07-07T08:05:41Z
dc.descriptionWe study the effect of quantum charge fluctuations on the even-odd energy difference for a small superconducting island (Cooper-pair box) connected to a large finite-size superconductor by a tunnel junction. Even-odd energy difference is important for understanding the quasiparticle "poisoning" effect, and determines the activation energy of a trapped quasiparticle in the Cooper-pair box. We find that renormalization of the activation energy due to quantum charge fluctuations depends on the dimensionless normal-state conductance of the junction g_T, and becomes strong at g_T >> 1.
dc.description4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0612473
dc.identifierhttp://arxiv.org/abs/cond-mat/0612473
dc.identifierPhys. Rev. B 75, 212501 (2007)
dc.identifierdoi:10.1103/PhysRevB.75.212501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/130360
dc.subjectSuperconductivity
dc.subjectMesoscale and Nanoscale Physics
dc.titleEffect of quantum fluctuations on even-odd energy difference in a Cooper-pair box
dc.typetext

Files

Collections

arXiv