Two-dimensional map for a curved Fermi-Pasta-Ulam chain.

  • Ranja Sarkar
  • Published 2008 in
    Physical review. E, Statistical, nonlinear, and…

Abstract

A two-dimensional map is derived from the model of a curved Fermi-Pasta-Ulam (FPU) chain which supports exact discrete breather (DB) solutions with frequencies lying outside the linear spectrum or phonon band. The stability of the equilibrium points of the two-dimensional map is examined and the nature of the trajectories is numerically studied. The map… (More)

Topics

Figures and Tables

Sorry, we couldn't extract any figures or tables for this paper.