Quantum correction to the discrete breather in capacitively-coupled intrinsic Josephson junctions

Tomio Koyama, Masahiko Machida

Research output: Contribution to journalArticlepeer-review

Abstract

Macroscopic quantum tunneling (MQT) of a discrete breather is investigated in a stack of capacitively-coupled intrinsic Josephson junctions. The quantum escape rate of a breather trapped in a false vacuum is derived within the instanton approximation. We predict the escape rate is enhanced by the capacitive coupling between junctions.

Original languageEnglish
Pages (from-to)1321-1322
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume460-462 II
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2007 Sep 1

Keywords

  • Discrete breather
  • Intrinsic Josephson junctions
  • Macroscopic quantum tunneling

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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