Quantum Speed Limit for Non-Markovian Dynamics
Quantum Speed Limit for Non-Markovian Dynamics
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DOI：
10.1103/physrevlett.111.010402
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发表时间：
2013-07-03
影响因子：
8.6
通讯作者：
Lutz, Eric
中科院分区：
文献类型：
--
作者：
Deffner, Sebastian;Lutz, Eric
我们得到了任意驱动的开放量子系统的最小演化时间的Margolus-Levitin型界。我们表示这个量子速度极限时间的运营商规范的非幺正发电机的动力学。我们将这些结果应用于阻尼Jaynes-Cummings模型，并证明了相应的界是紧的。我们进一步证明了非马尔可夫效应可以加速量子演化，从而导致更小的量子速度限制时间。
We derive a Margolus-Levitin-type bound on the minimal evolution time of an arbitrarily driven open quantum system. We express this quantum speed limit time in terms of the operator norm of the nonunitary generator of the dynamics. We apply these results to the damped Jaynes-Cummings model and demonstrate that the corresponding bound is tight. We further show that non-Markovian effects can speed up quantum evolution and therefore lead to a smaller quantum speed limit time.