Quantum master equation for dephasing of a two-level system with an initial correlation

被引：28

作者：

Ban, Masashi ^{[1
]}

机构：

[1] Ochanomizu Univ, Grad Sch Humanities & Sci, Bunkyo Ku, Tokyo 1128610, Japan

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 06期

关键词：

PROJECTION OPERATOR-FORMALISM; DYNAMICS;

D O I：

10.1103/PhysRevA.80.064103

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Exact quantum master equation is derived for dephasing of a two-level system, which is an homogeneous time-convolutionless equation even though there is an initial correlation between a two-level system and a thermal reservoir. The result is compared with the quantum master equation derived by means of the projection operator method. Furthermore, the effects of the initial correlation on the dephasing process are examined.

引用

页数：4

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