Open AccessThe effect of nonlinear parameters in one-dimensional mixed Klein-Gordon/Fermi-Pasta-Ulam chain
Author(s) -
Qian Zhou,
Lyu Bin-Bin,
Qiang Tian
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.411
Subject(s) - breather , chain (unit) , physics , nonlinear system , harmonic , basis (linear algebra) , plane (geometry) , fermi gamma ray space telescope , classical mechanics , mathematical analysis , quantum mechanics , mathematics , geometry
The possible discrete breathers are obtained numerically in the system of one-dimensional mixed Klein-Gordon/Fermi-Pasta-Ulam chain on the basis of simplified motion equations by using extended rotating plane wave approximation. Furthermorethe effect of each nonlinear parameter on the staticfirst-order harmonic and second-order harmonic components of the discrete breathers is investigated.