Role of the superposition principle for enhancing the efficiency of the quantum-mechanical Carnot engine

被引：23
|
作者：
Abe, Sumiyoshi [1 ,2 ]
Okuyama, Shinji [1 ]
机构：
[1] Mie Univ, Dept Engn Phys, Tsu, Mie 5148507, Japan
[2] Inst Super Mat & Mecan Avances, F-72000 Le Mans, France
来源：
PHYSICAL REVIEW E | 2012年 / 85卷 / 01期
基金：
日本学术振兴会;
关键词：
D O I：
10.1103/PhysRevE.85.011104
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
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.
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收藏
页数：4
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