Role of the superposition principle for enhancing the efficiency of the quantum-mechanical Carnot engine
Role of the superposition principle for enhancing the efficiency of the quantum-mechanical Carnot engine
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DOI：
10.1103/physreve.85.011104
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发表时间：
2012-01-03
影响因子：
2.4
通讯作者：
Okuyama, Shinji
中科院分区：
文献类型：
--
作者：
Abe, Sumiyoshi;Okuyama, Shinji
叠加原理的作用在Bender、Brody和Meister [J. Phys. A 33，4427（2000）]介绍的量子力学卡诺引擎中进行了讨论。结果表明，量子态的叠加可以提高发动机的效率。对有限时间过程进行了讨论，给出了最大功率输出的条件。有趣的是，在最大功率下的效率低于没有叠加的效率。
The role of the superposition principle is discussed for the quantum-mechanical Carnot engine introduced by Bender, Brody, and Meister [J. Phys. A 33, 4427 (2000)]. It is shown that the efficiency of the engine can be enhanced by the superposition of quantum states. A finite-time process is also discussed and the condition of the maximum power output is presented. Interestingly, the efficiency at the maximum power is lower than that without superposition.