Thermodynamic description of non-Markovian information flux of nonequilibrium open quantum systems

Hong Bin Chen, Guang Yin Chen, Yueh Nan Chen

研究成果: Article同行評審

11 引文 斯高帕斯(Scopus)

摘要

One of the fundamental issues in the field of open quantum systems is the classification and quantification of non-Markovianity. In the contest of quantity-based measures of non-Markovianity, the intuition of non-Markovianity in terms of information backflow is widely discussed. However, it is not easy to characterize the information flux for a given system state and show its connection to non-Markovianity. Here, by using the concepts from thermodynamics and information theory, we discuss a potential definition of information flux of an open quantum system, valid for static environments. We present a simple protocol to show how a system attempts to share information with its environment and how it builds up system-environment correlations. We also show that the information returned from the correlations characterizes the non-Markovianity and a hierarchy of indivisibility of the system dynamics.

原文English
文章編號062114
期刊Physical Review A
96
發行號6
DOIs
出版狀態Published - 2017 十二月 11

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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