| Moving Compacton—like Kink in a Purely Anharmonic Lattice with Symmetric On—Site Potential |
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| 引用本文： | 夏庆林,蒋冬初,等.Moving Compacton—like Kink in a Purely Anharmonic Lattice with Symmetric On—Site Potential[J].中国物理快报,2003,20(1):105-107. |
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| 作者姓名： | 夏庆林 蒋冬初 |
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| 作者单位： | [1]SchoolofPhysicsScienceandTechnolgy,CentralSouthUniversity,Changsha410083 [2]DepartmentofPhysicsandElectronicScience,HunanCityUniversity,Yiyang413049 |
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| 摘 要： | We study the moving compacton-like kink in the system of a purely anharmoinc lattice with symmetric onsite poential by a direct algebraic method.It is found that the localization of the compactons is related to the nonlinear coupling parameter Cnl and the potential barrier height V0 of the double well potential,and the velocity of the propagation of the compacton is determined by the localization parameter q and the potential barrier height V0.Numerical calculation results demonstrate that the compacton is stable when it moves along the lattice chain.
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| 关 键 词： | 非线性克莱茵－高登方程 类结致密子 非简谐格子 对称势 |
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