Quantum semi-Markov processes
Quantum semi-Markov processes
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DOI：
10.1103/physrevlett.101.140402
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发表时间：
2008-10-03
影响因子：
8.6
通讯作者：
Vacchini, Bassano
中科院分区：
文献类型：
--
作者：
Breuer, Heinz-Peter;Vacchini, Bassano
我们构建了一个大类的非马尔可夫主方程，描述了具有强记忆效应的开放量子系统的动力学，这依赖于经典半马尔可夫过程的概念的量子推广。给出了相应的量子动力学映射的完全正性的一般条件。由此产生的非马尔可夫量子过程允许处理各种物理系统，如通过各种示例和应用所示，包括量子光学系统和量子传输模型。
We construct a large class of non-Markovian master equations that describe the dynamics of open quantum systems featuring strong memory effects, which relies on a quantum generalization of the concept of classical semi-Markov processes. General conditions for the complete positivity of the corresponding quantum dynamical maps are formulated. The resulting non-Markovian quantum processes allow the treatment of a variety of physical systems, as is illustrated by means of various examples and applications, including quantum optical systems and models of quantum transport.