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

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

AC 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.
5 pages, 1 figure

Keywords

Mesoscale and Nanoscale Physics, Superconductivity

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/140323

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0704.3666
 http://arxiv.org/abs/0704.3666
 Physc. Rev. B 76, 144509 (2007)
 doi:10.1103/PhysRevB.76.144509

Collections

arXiv