Self-Localized Modes in a Pure One-Dimensional Lattice with Cubic and Quartic Lattice Anharmonicity
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概要
- 論文の詳細を見る
A pure one-dimensional lattice with cubic and quartic anharmonicity is studied toshow the existence of two types of self-localized modes, one is stationary and theother mobile. For the former, the lattice Green's function method is employed to for-mulate the frequency and a profile function of a fundamental mode and those ofhigher harmonics. An v-like symmetry mode and a 7t-like one are shown to be physically interesting. In the one-localized-mode problem, approximate analytical expres-sions for these quantities are obtained in the extreme localization. The cubic anhar-monicity is shown to introduce a tiny kink-like distortion attached to the localizedmode. For a propagating localized mode, numerical and approximate analyticalcalculations are done to show the existence of a well-defined p-like mode.
- 社団法人日本物理学会の論文
- 1991-03-15
著者
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Takeno Shozo
Laboratory Of Physics Faculty Of Engineering And Design Kyoto Institute Of Technology
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HORI Kazunari
Department of Electronic,Faculty of Engineering and Design,Kyoto Institute of Technology
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Hori Kazunari
Department Of Electronic Faculty Of Engineering And Design Kyoto Institute Of Technology
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