Non-Markovian dynamical maps and spin relaxation

被引：1

作者：

Uchiyama, Chikako ^{[1
]}

机构：

[1] Univ Yamanashi, Fac Engn, Dept Elect & Elect Engn, Kofu, Yamanashi 4008511, Japan

来源：

PHYSICS LETTERS A | 2006年 / 356卷 / 4-5期

关键词：

not completely positive map; projection operator method; non-Markovian effect; Hilbert-Schmidt space;

D O I：

10.1016/j.physleta.2006.03.072

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Non-Markovian dynamical maps are derived by using the projection operator method in Hilbert-Schmidt space. The eigenvalues and eigenvectors of the obtained maps describe the relaxation processes. We found that a dynamical map for a spin-bath model periodically becomes positive but not completely positive by the non-Markovian effect of the system-reservoir interaction. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：294 / 305

页数：12

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