Phase locking between Fiske and flux-flow modes in coupled sine-Gordon systems

Niels Grønbech-Jensen, James A. Blackburn, Mogens Rugholm Samuelsen

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Abstract

We investigate nonlinear resonant modes in coupled sine-Gordon systems with open boundary conditions. The system models coupled Josephson junctions with boundary conditions representing the situation where an external magnetic field is applied. The so-called Fiske modes are found to exist in phase-locked states where the equivalent voltages across the individual coupled Josephson junctions are either identical or identical with opposite signs. The analysis covers all Fiske modes including the flux-flow region. We present a comprehensive comparison between results on analytical treatment and direct numerical simulations of the coupled field equations.
Original languageEnglish
JournalPhysical Review B
VolumeB53
Issue number18
Pages (from-to)12364-12372
ISSN2469-9950
DOIs
Publication statusPublished - 1996
Externally publishedYes

Bibliographical note

Copyright (1996) American Physical Society.

Keywords

  • HYPERRADIANCE
  • JOSEPHSON SOLITON OSCILLATORS
  • DYNAMICS
  • JUNCTIONS

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