Moving Compacton-like Kink in a Purely Anharmonic Lattice with
Symmetric On-Site Potential

Chin. Phys. Lett.

2003, Vol. 20

Issue (1): 105-107 DOI:

Original Articles

Moving Compacton-like Kink in a Purely Anharmonic Lattice with Symmetric On-Site Potential

XIA Qing-Lin¹;JIANG Dong-Chu²

¹School of Physics Science and Technology, Central South University, Changsha 410083 ²Departmemt of Physics and Electronic Science, Hunan City University, Yiyang 413049

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XIA Qing-Lin, JIANG Dong-Chu 2003 Chin. Phys. Lett. 20 105-107

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Abstract We study the moving compacton-like kink in the system of a purely anharmonic lattice with symmetric on-site potential by a direct algebraic method. It is found that the localization of the compactons is related to the nonlinear coupling parameter C_nl 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.

Keywords: 63.90.+t 63.20.Pw

Published: 01 January 2003

PACS:	63.90.+t	(Other topics in lattice dynamics)
	63.20.Pw	(Localized modes)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I1/0105

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