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Single-temperature quantum engine without feedback control.

作者信息

Yi Juyeon, Talkner Peter, Kim Yong Woon

机构信息

Department of Physics, Pusan National University, Busan 46241, South Korea.

Institut für Physik, Universität Augsburg, Universitätsstraße 1, 86159 Augsburg, Germany.

出版信息

Phys Rev E. 2017 Aug;96(2-1):022108. doi: 10.1103/PhysRevE.96.022108. Epub 2017 Aug 4.

DOI:10.1103/PhysRevE.96.022108
PMID:28950640
Abstract

A cyclically working quantum-mechanical engine that operates at a single temperature is proposed. Its energy input is delivered by a quantum measurement. The functioning of the engine does not require any feedback control. We analyze work, heat, and the efficiency of the engine for the case of a working substance that is governed by the laws of quantum mechanics and that can be adiabatically compressed and expanded. The obtained general expressions are exemplified for a spin in an adiabatically changing magnetic field and a particle moving in a potential with slowly changing shape.

摘要

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