Spatiotemporal dynamics of discrete sine-Gordon lattices with sinusoidal couplings

Zhigang Zheng*, Bambi Hu, Gang Hu

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

22 Citations (Scopus)


The spatiotemporal dynamics of a damped sine-Gordon chain with sinusoidal nearest-neighbor couplings driven by a constant uniform force are discussed. The velocity characteristics of the chain versus the external force are shown. Dynamics in the high- and low-velocity regimes are investigated. It is found that in the high-velocity regime, the dynamics is dominated by rotating modes, the velocity shows a branching bifurcation feature, while in the low-velocity regime, the velocity exhibits steplike dynamical transitions, broken by the destruction of strong resonances.

Original languageEnglish
Pages (from-to)1139-1144
Number of pages6
JournalPhysical Review E
Issue number1
Publication statusPublished - 1 Jan 1998

Scopus Subject Areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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