Non-Markovian dynamics of a qubit in a reservoir: different solutions of non-Markovian master equation

被引：12

作者：

Ding Bang-Fu ^{[1
]}

Wang Xiao-Yun ^{[1
]}

Tang Yan-Fang ^{[1
]}

Mi Xian-Wu ^{[1
]}

Zhao He-Ping ^{[1
]}

机构：

[1] Jishou Univ, Coll Phys Sci & Informat Engn, Jishou 416000, Peoples R China

来源：

CHINESE PHYSICS B | 2011年 / 20卷 / 06期

关键词：

Nakajima-Zwanzig and time convolutionless projection operator technique; non-Markovian solutions; Markovian solutions; correlation function; qubit; GENERATORS;

D O I：

10.1088/1674-1056/20/6/060304

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a non-Markovian master equation for a qubit interacting with a general reservoir, which is derived according to the Nakajima-Zwanzig and the time convolutionless projection operator technique. The non-Markovian solutions and Markovian solution of dynamical decay of a qubit are compared. The results indicate the validity of non-Markovian approach in different coupling regimes and also show that the Markovian master equation may not precisely describe the dynamics of an open quantum system in some situation. The non-Markovian solutions may be effective for many qubits independently interacting with the heated reservoirs.

引用

页数：5

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