Quantum Breathers in an Anisotropic Ferromagnetic Heisenberg Chain with Biquadratic Exchange Interaction

被引：0
|
作者：
Bing Tang
De-Jun Li
Ke Hu
Yi Tang
机构：
[1] Xiangtan University,Department of Physics
[2] Jishou University,College of Physics, Mechanical and Electrical Engineering
来源：
International Journal of Theoretical Physics | 2013年 / 52卷
关键词：
Quantum spin chain; Biquadratic exchange interaction; Quantum breathers;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on the Hartree approximation and the semidiscrete multiple-scale method, quantum breathers in an anisotropic ferromagnetic Heisenberg chain with biquadratic exchange interaction are predicted analytically. The existence condition of quantum breathers is obtained, and the properties of quantum breathers are analyzed. Moreover, it is shown that the energy of such quantum breathers is quantized.
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页码：4139 / 4147
页数：8
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