Kink Dynamics in the Discrete Sine-Gordon System A Perturbational Approach
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概要
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Discreteness effects on dynamics of a Sine-Gordon kink in a lattice system arestudied with use of a perturbation formalism due to McLaughlin and Scott. Itis shown from the zeroth order condition that a kink moves in a periodic (Peierls)potential field which causes wobbling or pinning of the kink. The first order cor-rection for the kink consists of two part, that is, a dressing part and a radiationone. The dressed kink is steeper in shape than the continuum Sine-Gordon linkand the amplitude of the backward radiation is larger than that of the forwardradiation. These results are in accord with existing simulational observation.
- 社団法人日本物理学会の論文
- 1982-10-15
著者
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Munakata Toyonori
Department Of Applied Mathematics And Physics Faculty Of Engineering Kyoto University
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Ishimori Yuji
Department Of Applied Mathematics And Physics Faculty Of Engineering Kyoto University
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Ishimori Yuji
Department of Applied Mathematics and Physics,Kyoto University
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