Maximum-power quantum-mechanical Carnot engine

Details Maximum-power quantum-mechanical Carnot engine Maximum-power quantum-mechanical Carnot engine

2010-12-27

arxiv.org/abs/1012.5583v2

Phys. Rev. E 83, 041117 (2011)

Physics

Condensed Matter

Statistical Mechanics

12 pages, 1 figure

Scientific paper

In their work [J. Phys. A: Math. Gen. 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 the 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.

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