Self-Sustained Kinks in a One-Dimensional Nonlinear Lattice with Dissipation
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概要
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Kinks connecting nondegenerate minima of an on-site potential of a one-dimen-sional nonlinear lattice with dissipation are studied. Such kinks are self-sustainedones in the sense that being a kink or an antikink and the kink velocity are uniquelyrelated to a friction coefficient which is either positive or negative. Nonlinear latticeequations are solved numerically for a model on-site potential with anharmonicity upto the sixth order by using as an input a discrete version of exact one-kink solutionswhich exist in their continuum limit. The main result so obtained is: (1) a smooth pro-pagation of a single kink with width down to about one-third of the lattice constantand (2) various features of two-kink states generated by kink-antikink head-on colli-sions which are different for different forms of the on-site potential and different col-tiding kink speeds.
- 社団法人日本物理学会の論文
- 1988-03-15
著者
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Takeno Shozo
Department Of Physics
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Takeno Shozo
Department Of Information Systems Faculty Of Information Science Osaka Institute Of Technology
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Kisoda Kenji
Department Of Applied Physics Osaka University
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Takeno Shozo
Department Of General Education Osaka Institute Of Technology
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