Escape rate in small Josephson junctions with the Coulomb blockade

ASKERBEYLİ İ.

Low Temperature Physics, vol.50, no.11, pp.962-964, 2024 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 50 Issue: 11
  • Publication Date: 2024
  • Doi Number: 10.1063/10.0030411
  • Journal Name: Low Temperature Physics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC
  • Page Numbers: pp.962-964
  • Keywords: Coulomb blockade, Josephson junction, quantum tunneling., thermal fluctuations
  • Ankara University Affiliated: Yes

Abstract

In this study, we carried out the analysis of the escape rate in small Josephson junctions with Coulomb blockade of Cooper pairs. It was shown that escape rate in small junctions is determined by the energy ratio parameter κ = E J / E C in thermal activation and macroscopic quantum tunneling regimes. In the thermal activation regime, temperature also increases the escape rate.