Nonequilibrium Quantum Many-Body Rydberg Atom Engine.
Nonequilibrium Quantum Many-Body Rydberg Atom Engine.
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DOI：
10.1103/physrevlett.124.170602
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发表时间：
2019-12
影响因子：
8.6
通讯作者：
F. Carollo;F. M. Gambetta;K. Brandner;J. P. Garrahan;I. Lesanovsky
中科院分区：
文献类型：
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作者：
F. Carollo;F. M. Gambetta;K. Brandner;J. P. Garrahan;I. Lesanovsky
量子引擎的标准方法是基于平衡系统和吉布斯态之间的热力学变换。然而，非平衡量子系统在控制其参数方面提供了增强的实验灵活性，并且如果用作引擎，则可以更直接地解释它们所提供的工作类型。在这里，我们介绍了一个非平衡量子引擎的灵感来自最近的冷原子实验。我们的系统连接到一个单一的环境，并产生机械功从多体粒子间的相互作用所产生的原子之间的高度激发里德伯态。因此，它不是热机，而是等温发动机。我们进行多体模拟，以表明该系统可以产生的工作。我们介绍和调查的设置代表了一个很有前途的平台，设计新型的微观机器和探索量子效应的热力学过程。
The standard approach to quantum engines is based on equilibrium systems and on thermodynamic transformations between Gibbs states. However, nonequilibrium quantum systems offer enhanced experimental flexibility in the control of their parameters and, if used as engines, a more direct interpretation of the type of work they deliver. Here we introduce an out-of-equilibrium quantum engine inspired by recent experiments with cold atoms. Our system is connected to a single environment and produces mechanical work from many-body interparticle interactions arising between atoms in highly excited Rydberg states. As such, it is not a heat engine but an isothermal one. We perform many-body simulations to show that this system can produce work. The setup we introduce and investigate represents a promising platform for devising new types of microscopic machines and for exploring quantum effects in thermodynamic processes.