Quantum heat engines: A thermodynamic analysis of power and efficiency

Upendra Harbola; Saar Rahav; Shaul Mukamel

doi:10.1209/0295-5075/99/50005

Quantum heat engines: A thermodynamic analysis of power and efficiency

Upendra Harbola, Saar Rahav, Shaul Mukamel

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

We show that the operation and the output power of a quantum heat engine that converts incoherent thermal energy into coherent cavity photons can be optimized by manipulating quantum coherences. The gain or loss in the efficiency at maximum power depends on the details of the output power optimization. Quantum effects tend to enhance the output power and the efficiency as the photon occupation in the cavity is decreased.

Original language	English
Article number	50005
Journal	EPL
Volume	99
Issue number	5
DOIs	https://doi.org/10.1209/0295-5075/99/50005
State	Published - Sep 2012

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1209/0295-5075/99/50005

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title = "Quantum heat engines: A thermodynamic analysis of power and efficiency",

abstract = "We show that the operation and the output power of a quantum heat engine that converts incoherent thermal energy into coherent cavity photons can be optimized by manipulating quantum coherences. The gain or loss in the efficiency at maximum power depends on the details of the output power optimization. Quantum effects tend to enhance the output power and the efficiency as the photon occupation in the cavity is decreased.",

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AB - We show that the operation and the output power of a quantum heat engine that converts incoherent thermal energy into coherent cavity photons can be optimized by manipulating quantum coherences. The gain or loss in the efficiency at maximum power depends on the details of the output power optimization. Quantum effects tend to enhance the output power and the efficiency as the photon occupation in the cavity is decreased.

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Quantum heat engines: A thermodynamic analysis of power and efficiency

Abstract

All Science Journal Classification (ASJC) codes

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