Solitons in the two-dimensional antiferromagnetic Heisenberg model

被引：0
作者：
Liu, WM
Yi, JD
Pu, FC
机构：
[1] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
[2] Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China
[3] Guangzhou Teachers Coll, Dept Phys, Guangzhou 510400, Peoples R China
[4] Acad Sinica, Inst Phys, Beijing 100080, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 1999年 / 31卷 / 04期
关键词：
soliton; Heisenberg model;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
An effective Hamiltonian of the two-dimensional antiferromagnetic Heisenberg model is derived by using the Holstein-Primakoff transformation. Three nonlinear coupled partial equations of motion are obtained. In the long-wavelength approximation, these equations are reduced to the envelope function equations by the method of multiple scales. The amplitude functions satisfy the nonlinear Schrodinger equation. Introducing an inverse scattering transformation, the single-, two- and multi-soliton solutions in the two-dimensional antiferromagnetic Heisenberg model are investigated.
引用
收藏
页码：523 / 530
页数：8
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