论文标题
多部分系统中的记忆效应，并由非对角线驱动机制结合
Memory effects in multipartite systems coupled by non-diagonal dephasing mechanisms
论文作者
论文摘要
（非马科维亚）记忆效应的发展很大程度上取决于基本的系统环境动力学。在这里，我们在多部分布置中研究了这个问题，在这些问题中，所有子系统都通过非对抗马尔可夫人（Lindblad）的脱落机制相互耦合。作为互补子系统的系统和环境任意集合，这表明可以以精确的分析方式来表征量子非马克维亚性的操作和非手术方法。类似于以前关于这种动力学中耗散范围内生成生成的研究[Seif，Wang和Clerk，Phys。莱特牧师。 128，070402（2022）]，我们发现只有在打破时间反转对称性时，记忆效应才能出现。然而，还发现，通过马尔可夫·迪格斯（Markovian Dephasing Dynamics）的统计混合物，可以等效地代表脱离马克维亚语，这不涉及任何系统 - 环境纠缠。特定的双分和多部分动力学体现了主要的一般结果。
The developing of (non-Markovian) memory effects strongly depends on the underlying system-environment dynamics. Here we study this problem in multipartite arrangements where all subsystems are coupled to each other by non-diagonal Markovian (Lindblad) dephasing mechanisms. Taking as system and environment arbitrary sets of complementary subsystems it is shown that both operational and non-operational approaches to quantum non-Markovianity can be characterized in an exact analytical way. Similarly to previous studies about dissipative-entanglement-generation in this kind of dynamics [Seif, Wang, and Clerk, Phys. Rev. Lett. 128, 070402 (2022)], we found that memory effects can only emerge when a time-reversal symmetry is broken. Nevertheless, it is also found that departures from Markovianity can equivalently be represented through a statistical mixture of Markovian dephasing dynamics, which does not involve any system-environment entanglement. Specific bipartite and multipartite dynamics exemplify the main general results.
