Dynamical role of system-environment correlations in non-Markovian dynamics
Dynamical role of system-environment correlations in non-Markovian dynamics
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DOI：
10.1103/physreva.86.010102
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发表时间：
2012-07-30
影响因子：
2.9
通讯作者：
Paternostro, Mauro
中科院分区：
文献类型：
--
作者：
Mazzola, Laura;Rodriguez-Rosario, Cesar A.;Paternostro, Mauro
我们分析了系统环境相关性在非马尔可夫动力学的出现中所起的作用。通过在Breuer等人[Phys. Rev. Lett. 103，210401（2009）]，我们揭示了非马尔可夫行为和系统-环境相关性的动力学之间的基本联系。我们推导出一个上限的变化率的系统，明确地依赖于系统和环境之间的相关性的建立不同的状态之间的可扩展性。我们用一个完全可解的自旋链模型来说明我们的结果，这使我们能够深入了解触发非马尔可夫进化的机制。
We analyze the role played by system-environment correlations in the emergence of non-Markovian dynamics. By working within the framework developed in Breuer et al. [Phys. Rev. Lett. 103, 210401 (2009)], we unveil a fundamental connection between non-Markovian behavior and dynamics of system-environment correlations. We derive an upper bound to the rate of change of the distinguishability between different states of the system that explicitly depends on the establishment of correlations between system and environment. We illustrate our results using a fully solvable spin-chain model, which allows us to gain insight into the mechanisms triggering non-Markovian evolution.