Berry phase of coupled two arbitrary spins in a time-varying magnetic field

被引：0

作者：

Xu Chang-Tan ^{[1
]}

He Ming-Ming

Chen Gang

机构：

[1] Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Peoples R China

[2] Linyi Normal Univ, Inst Condensed Matter Phys, Linyi 276005, Peoples R China

[3] Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China

来源：

CHINESE PHYSICS | 2006年 / 15卷 / 05期

关键词：

berry phase; time-dependent gauge transformation; coupled two arbitrary spins;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we investigate the Berry phase of two coupled arbitrary spins driven by a time-varying magnetic field where the Hamiltonian is explicitly time-dependent. Using a technique of time-dependent gauge transform the Berry phase and time-evolution operator are found explicitly in the adiabatic approximation. The general solutions for arbitrary spins are applied to the spin-1/2 system as an example of explanation.

引用

页码：912 / 914

页数：3

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