Dissipative quantum effects in small Josephson junctions

Takeo Kato*, Masatoshi Imada

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Dissipation effects on a single Josephson junction are studied based on a harmonic-oscillator model in the weak coupling region. It is shown that the system is controlled by two characteristic energy scales. The origin of these energy scales is explained in terms of a classical plasma problem. This feature provides a new viewpoint on the superconductor-insulator transition of small Josephson junctions.

Original languageEnglish
Pages (from-to)149-152
Number of pages4
JournalPhysica C: Superconductivity and its applications
Issue number1-4
Publication statusPublished - 2001 Apr
Externally publishedYes


  • Dissipation effect
  • Harmonic-oscillator model
  • Josephson junctions
  • S-I transition

ASJC Scopus subject areas

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


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