| The effects of cubic potentials on discrete breathers in a mixed Klein－Gordon /Fermi－Pasta－Ulam chain |
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| 引用本文： | 周倩,吕彬彬,田强.The effects of cubic potentials on discrete breathers in a mixed Klein－Gordon /Fermi－Pasta－Ulam chain[J].中国物理 B,2010,19(6):66301-066301. |
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| 作者姓名： | 周倩 吕彬彬 田强 |
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| 作者单位： | Department of Physics, Beijing Normal University, Beijing 100875, China;Department of Physics, Beijing Normal University, Beijing 100875, China;Department of Physics, Beijing Normal University, Beijing 100875, China |
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| 基金项目： | Project supported
by the National Natural Science Foundation of China (Grant No.~10574011) and
the Foundation for Innovative Research Groups Foundation of Beijing Normal
University. |
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| 摘 要： |
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| 收稿时间： | 2009-05-20 |
The effects of cubic potentials on discrete breathers in a mixed Klein－Gordon /Fermi－Pasta－Ulam chain |
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| ZhouQian,L\"u Bin-Bin and Tian Qiang.The effects of cubic potentials on discrete breathers in a mixed Klein－Gordon /Fermi－Pasta－Ulam chain[J].Chinese Physics B,2010,19(6):66301-066301. |
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| Authors: | ZhouQian L\"u Bin-Bin and Tian Qiang |
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| Institution: | Department of Physics, Beijing Normal University, Beijing 100875, China |
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| Abstract: | Nonlinearity has a crucial impact on the symmetry properties of dynamical
systems. This paper studies a one-dimensional mixed Klein--Gordon/Fermi--Pasta--Ulam diatomic
chain using the expanded rotating plane-wave approximation and numerical
calculations to determine the effect of cubic potentials on the symmetry
properties of discrete breathers in this system. The results will be very
useful to researchers in the field of numerical calculations on
discrete breathers. |
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| Keywords: | one-dimensional mixed Klein--Gordon/Fermi--Pasta--Ulam diatomic
chain discrete breathers expanded rotating plane wave approximation symmetry |
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