Maximum-power quantum-mechanical Carnot engine
Maximum-power quantum-mechanical Carnot engine
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DOI：
10.1103/physreve.83.041117
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发表时间：
2011-04-19
影响因子：
2.4
通讯作者：
Abe, Sumiyoshi
中科院分区：
文献类型：
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作者：
Abe, Sumiyoshi
在他们的工作中[J.Phys.A 33,4427(2000)]，Bender，Brody和Meister通过采用一维无限深势垒中粒子的两态模型证明了通过以特定的方式改变势垒宽度和量子态来构造卡诺引擎的量子力学模拟是可能的。在这里，讨论了如何实现这种发动机的最大功率，其中井的宽度以低但有限的速度移动。发现发动机在最大功率输出时的效率是通用的，与模型中包含的任何参数无关。
In their work [J. Phys. A 33, 4427 (2000)], Bender, Brody, and Meister have shown by employing a two-state model of a particle confined in the one-dimensional infinite potential well that it is possible to construct a quantum-mechanical analog of the Carnot engine through changes of both the width of the well and the quantum state in a specific manner. Here, a discussion is developed about realizing the maximum power of such an engine, where the width of the well moves at low but finite speed. The efficiency of the engine at the maximum power output is found to be universal independently of any of the parameters contained in the model.