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arXiv 0908.0238quant-ph
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开放系统中量子过程非马尔可夫行为程度的度量

Measure for the Degree of Non-Markovian Behavior of Quantum Processes in Open Systems

Heinz-Peter Breuer, Elsi-Mari Laine, Jyrki Piilo

摘要:

构造了开放量子系统非马尔可夫行为程度的一般度量。这种度量是基于迹距的,迹距量化了量子态的可分辨性。它代表了描述物理状态随时间演化的动力学映射的一个泛函,可以用开放系统与其环境之间的信息流来解释。当有信息流从环境返回到开放系统时,该度量取非零值,这是非马尔可夫动力学的关键特征。

英文摘要:

We construct a general measure for the degree of non-Markovian behavior in open quantum systems. This measure is based on the trace distance which quantifies the distinguishability of quantum states. It represents a functional of the dynamical map describing the time evolution of physical states, and can be interpreted in terms of the information flow between the open system and its environment. The measure takes on nonzero values whenever there is a flow of information from the environment back to the open system, which is the key feature of non-Markovian dynamics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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