Enhancement of Josephson quasiparticle current in coupled superconducting single-electron transistors

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

The Josephson quasiparticle (JQP) cycle in a voltage-biased superconducting single-electron transistor (SSET) combines coherent Cooper pair tunneling with incoherent quasiparticle decay. We have measured the influence of current flow through an independently-biased SSET on the JQP cycle when the two SSET's have a strong mutual capacitive coupling. We find, among other effects, that the JQP current in one SSET is enhanced by the presence of a quasiparticle current in the other SSET. A simplified model of the coupled-SSET system is presented which reproduces the enhancement effect.

Keywords

Mesoscale and Nanoscale Physics, Superconductivity

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/29770

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9909442
 http://arxiv.org/abs/cond-mat/9909442

Collections

arXiv