Thermodynamics and I-V characteristics of resistance-shunted Josephson junctions

Takeo Kato, Masatoshi Imada

Research output: Contribution to journalArticlepeer-review

Abstract

Resistance-shunted Josephson junctions are studied theoretically based on a tight-binding model. In addition to the effective bandwidth 2ℏΔeff, this multi-level system genuinely has a novel crossover at lower energy KℏΔeff below which the density of states becomes strongly degenerate, where K is a dimensionless damping strength. The optical responses take nearly Lorentzian forms with a width of the order of KℏΔ. The non-linear I-V characteristics is also discussed.

Original languageEnglish
Pages (from-to)1820-1821
Number of pages2
JournalPhysica B: Condensed Matter
Volume284-288
Issue numberPART II
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

Keywords

  • Coulomb blockade
  • Dissipation
  • Josephson junction
  • Superconductor-insulator transition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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