Berry phase for a spin 1/2 particle in a classical fluctuating field

被引：195

作者：

De Chiara, G

Palma, GM

机构：

[1] Scuola Normale Super Pisa, NEST, INFM, I-56126 Pisa, Italy

[2] Univ Milan, NEST, INFM, I-26013 Crema, CR, Italy

[3] Univ Milan, Dipartimento Tecnol Informaz, I-26013 Crema, CR, Italy

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.91.090404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of fluctuations in the classical control parameters on the Berry phase of a spin 1/2 interacting with an adiabatically cyclically varying magnetic field is analyzed. It is explicitly shown that in the adiabatic limit dephasing is due to fluctuations of the dynamical phase.

引用

页数：4

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