AC Josephson current and supercurrent noise through one-dimensional correlated electron systems

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dc.creatorYokoshi, Nobuhiko
dc.creatorKurihara, Susumu
dc.date2007-04-27
dc.date2007-10-22
dc.date.accessioned2026-07-07T08:37:13Z
dc.date.available2026-07-07T08:37:13Z
dc.descriptionAC Josephson effect in one-dimensional Tomonaga-Luttinger liquid (TLL) adiabatically connected to superconducting electrodes is theoretically investigated. It is found that density fluctuations due to repulsive electron-electron interactions in TLL inhibit Josephson oscillations, whereas they do not affect time-independent current part. We also show that the fluctuations reduce supercurrent noise caused by multiple Andreev reflections. This indicates that the quantum fluctuations in TLL disturb the superconducting phase coherence spreading across the junction.
dc.description5 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0704.3666
dc.identifierhttp://arxiv.org/abs/0704.3666
dc.identifierPhysc. Rev. B 76, 144509 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.144509
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/140323
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleAC Josephson current and supercurrent noise through one-dimensional correlated electron systems
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