LOCALIZED STATES IN DISCRETE NONLINEAR SCHRODINGER-EQUATIONS

被引：162

作者：

CAI, D ^{[1
]}

BISHOP, AR ^{[1
]}

GRONBECHJENSEN, N ^{[1
]}

机构：

[1] LOS ALAMOS NATL LAB,CTR NONLINEAR STUDIES,LOS ALAMOS,NM 87545

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.72.591

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new 1D discrete nonlinear Schrodinger (NLS) Hamiltonian is introduced which includes the integrable Ablowitz-Ladik system as a limit. The symmetry properties of the system are studied. The relationship between intrinsic localized states and the soliton of the Ablowitz-Ladik NLS is discussed, including the role of discretization as a mechanism controlling collapse. It is pointed out that a staggered localized state can be viewed as a particle of a negative effective mass. It is shown that staggered localized states can exist in the discrete dark NLS. The motion of localized states and Peierls-Nabarro pinning are also studied.

引用

页码：591 / 595

页数：5

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