Rydberg-ion flywheel for quantum work storage
Rydberg-ion flywheel for quantum work storage
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DOI：
10.1103/physreva.108.l050201
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发表时间：
2023-04
影响因子：
2.9
通讯作者：
W. S. Martins;F. Carollo;Weibin Li;K. Brandner;I. Lesanovsky
中科院分区：
文献类型：
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作者：
W. S. Martins;F. Carollo;Weibin Li;K. Brandner;I. Lesanovsky
囚禁离子为量子技术提供了一个平台，提供了长相干时间和高度的可扩展性和可控性。在这里，我们使用这个平台来开发一个真实的热器件模型，该热器件由两个激光驱动的、强耦合的里德堡离子组成，在一个谐波陷阱中。我们证明了这个系统的平移自由度可以作为一个飞轮，存储循环热力学过程产生的功输出到它的电子自由度上。通过外部控制参数的周期性变化来模拟这一过程，我们使用基于数值和解析计算的平均场方法来识别相关的物理过程并确定飞轮的充电率。我们的工作为基于里德堡离子的微型热机的设计铺平了道路，它既可以配备多体工作介质，也可以配备通用工作存储。
Trapped ions provide a platform for quantum technologies that offers long coherence times and high degrees of scalability and controllability. Here, we use this platform to develop a realistic model of a thermal device consisting of two laser-driven, strongly coupled Rydberg ions in a harmonic trap. We show that the translational degrees of freedom of this system can be utilized as a flywheel storing the work output that is generated by a cyclic thermodynamic process applied to its electronic degrees of freedom. Mimicking such a process through periodic variations of external control parameters, we use a mean-field approach underpinned by numerical and analytical calculations to identify relevant physical processes and to determine the charging rate of the flywheel. Our work paves the way for the design of microscopic thermal machines based on Rydberg ions that can be equipped with both many-body working media and universal work storages.