Limit cycles in periodically driven open quantum systems

Limit cycles in periodically driven open quantum systems
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周期性驱动的开放量子系统中的极限环

DOI:
10.1088/1751-8121/ab435a
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发表时间:
2019
期刊:
Journal of Physics A: Mathematical and Theoretical
影响因子:
--
通讯作者:
K. Brandner
K. Brandner
中科院分区:
--
文献类型:
--
作者:
Paul Menczel;K. Brandner

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我们研究了耦合到马尔可夫环境并受周期驱动的量子N能级系统的长时间行为。作为我们的主要结果,我们得到了Lindblad形式的周期量子主方程的所有解都逼近唯一极限环的一般代数条件。非常直观地,这个标准要求主方程的耗散项在周期时间的任意小部分期间连接系统希尔伯特空间的所有子空间。我们的研究结果提供了一个自然的扩展Spohn的代数条件的方法平衡系统与外部驱动。此外,我们的理论导致了一个严格的条件出现的耗散离散时间晶体,也涵盖了经典的,周期性调制的马尔可夫跳跃过程。
We investigate the long-time behavior of quantum N-level systems that are coupled to a Markovian environment and subject to periodic driving. As our main result, we obtain a general algebraic condition ensuring that all solutions of a periodic quantum master equation with Lindblad form approach a unique limit cycle. Quite intuitively, this criterion requires that the dissipative terms of the master equation connect all subspaces of the system Hilbert space during an arbitrarily small fraction of the cycle time. Our results provide a natural extension of Spohn’s algebraic condition for the approach to equilibrium to systems with external driving. Moreover, our theory leads to a rigorous condition for the emergence of dissipative discrete time crystals and covers also classical, periodically modulated Markov jump processes.
DOI: 10.1103/physrevlett.122.015701
发表时间: 2019-01-08
影响因子: 8.6
作者:
Gambetta, F. M.;Carollo, F.;Lesanovsky, I
通讯作者: Lesanovsky, I