论文标题

开放系统的速度限制与一般环境相结合

Speed limit for open systems coupled to general environments

论文作者

Shiraishi, Naoto, Saito, Keiji

论文摘要

在这项研究中,我们研究了与任意耦合相互作用耦合到一般环境的量子和经典系统中状态转化的速度。我们表明,Mandelstam-TAMM型速度限制存在,并且能量波动仍然在开放量子系统的速度限制不平等中起着至关重要的作用。除了与环境耦合之外,目标系统的能量波动是不平等的关键。我们还介绍了开放系统的速度限制的经典版本。作为提出的速度限制表达的潜在应用,我们讨论了量子循环发动机状态变化的基本限制以及分离量子系统的热化现象所需的平衡时间。

In this study, we investigate the bound on the speed of state transformation in the quantum and classical systems that are coupled to general environment with arbitrary coupling interactions. We show that a Mandelstam-Tamm type speed limit exists and energy fluctuation still plays a crucial role in this speed limit inequality for open quantum systems. The energy fluctuation of the target system in addition to the coupling to the environment is key in the inequality. We also present the classical version of the speed limit for open systems. As potential applications of the proposed speed limit expression, we discuss the fundamental limitation of the state change in quantum cyclic engines and the equilibriation time required for the thermalization phenomena of isolated quantum systems.

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