Counterdiabatic driving for periodically driven open quantum systems
Counterdiabatic driving for periodically driven open quantum systems
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DOI：
10.1098/rsta.2021.0276
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发表时间：
2022-03
期刊：
影响因子：
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通讯作者：
Kazutaka Takahashi
中科院分区：
文献类型：
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作者：
Kazutaka Takahashi
我们讨论周期性驱动的开放量子系统的动力学。量子态的时间演化由量子主方程描述，并且选择耗散器的形式，使得瞬时稳态由吉布斯分布给出。我们发现密度算子的总体部分和相干部分之间的相关性是由绝热规范势引起的。尽管反非绝热项的引入消除了相关性，但额外的相关性会阻止收敛到吉布斯分布。我们通过反非绝热项研究控制的性能。该系统具有三种不同的尺度，其性能很大程度上取决于它们的大小之间的关系。本文是主题“绝热性的捷径：理论、实验和跨学科视角”的一部分。
We discuss dynamics of periodically driven open quantum systems. The time evolution of the quantum state is described by the quantum master equation, and the form of the dissipator is chosen so that the instantaneous stationary state is given by the Gibbs distribution. We find that the correlation between the population part and the coherence part of the density operator is induced by an adiabatic gauge potential. Although the introduction of the counterdiabatic term eliminates the correlation, additional correlations prevent convergence to the Gibbs distribution. We study the performance of the control by the counterdiabatic term. The system has three different scales and the performance strongly depends on the relations between their magnitudes. This article is part of the theme issue ‘Shortcuts to adiabaticity: theoretical, experimental and interdisciplinary perspectives’.