NEW SOLITON EQUATION AND EXOTIC LOCALIZED MODES IN ANHARMONIC LATTICES

被引：15

作者：

KOSEVICH, YA

机构：

[1] Instituto de Ciencia de Materiales, 28006 Madrid

来源：

PHYSICS LETTERS A | 1993年 / 173卷 / 03期

关键词：

D O I：

10.1016/0375-9601(93)90274-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new kind of nonlinear envelope-function equation, more general than the nonlinear Klein-Gordon or Schrodinger one, for the short wavelength vibrational excitations in anharmonic lattices is obtained. Soliton and soliton-kink exotic localized modes with amplitude-independent small spatial widths are found in the framework of the consistent continuous approach. These modes include self-localized vibrational modes in homogeneous anharmonic lattices, previously revealed in a discrete-lattice theory.

引用

页码：257 / 262

页数：6

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