The effect of nonlinear parameters in one-dimensional mixed Klein-Gordon/Fermi-Pasta-Ulam chain

Zhou Qian; Lü Bin-Bin; Tian Qiang

doi:10.7498/aps.58.411

Abstract
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. Furthermore，the effect of each nonlinear parameter on the static，first-order harmonic and second-order harmonic components of the discrete breathers is investigated.

Keywords:
mixed Klein-Gordon/Fermi-Pasta-Ulam chain /

extended rotating plane wave approximation /

discrete breathers /

symmetry
Authors and contacts
Zhou Qian,

Lü Bin-Bin,

Tian Qiang

1.
北京师范大学物理系，北京 100875
References

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Vol. 58, Issue 1 - 2009-01-05

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The effect of nonlinear parameters in one-dimensional mixed Klein-Gordon/Fermi-Pasta-Ulam chain

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The effect of nonlinear parameters in one-dimensional mixed Klein-Gordon/Fermi-Pasta-Ulam chain

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