BOUND-STATES OF ENVELOPE AND BOUSSINESQ SOLITONS IN ANHARMONIC LATTICES

被引:23
|
作者
GAIDIDEI, YB [1 ]
CHRISTIANSEN, PL [1 ]
MINGALEEV, SF [1 ]
机构
[1] TECH UNIV DENMARK,INST MATH MODELLING,DK-2800 LYNGBY,DENMARK
来源
PHYSICA SCRIPTA | 1995年 / 51卷 / 03期
关键词
D O I
10.1088/0031-8949/51/3/001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We investigate a soliton charge and energy transport in anharmonic molecular systems and show that at large enough anharmonicity parameter there are two kinds of envelope solitons, one of which is a Davydov soliton. It has the usual one-bell shape and may exist at any anharmonicity. The other kind has a two-bell shape. The two-bell shape is a bound state of Davydov and Boussinesq solitons. It is caused by excitation (electron) tunnelling in the effective lattice potential.
引用
收藏
页码:289 / 299
页数:11
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