Quantum mechanical Carnot engine

Details Quantum mechanical Carnot engine Quantum mechanical Carnot engine

2000-07-03

arxiv.org/abs/quant-ph/0007002v1

J. Phys. A 33, 4427-4436, 2000

Physics

Quantum Physics

10 pages

Scientific paper

10.1088/0305-4470/33/24/302

A cyclic thermodynamic heat engine runs most efficiently if it is reversible. Carnot constructed such a reversible heat engine by combining adiabatic and isothermal processes for a system containing an ideal gas. Here, we present an example of a cyclic engine based on a single quantum-mechanical particle confined to a potential well. The efficiency of this engine is shown to equal the Carnot efficiency because quantum dynamics is reversible. The quantum heat engine has a cycle consisting of adiabatic and isothermal quantum processes that are close analogues of the corresponding classical processes.

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