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Entropy Exchange and Thermodynamic Properties of the Single Ion Cooling Process

Interdisciplinary Center for Quantum Information, National University of Defense Technology, Changsha 410073, China
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Entropy 2019, 21(7), 650; https://doi.org/10.3390/e21070650
Received: 29 May 2019 / Revised: 27 June 2019 / Accepted: 28 June 2019 / Published: 1 July 2019
(This article belongs to the Special Issue Quantum Thermodynamics II)
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Abstract

A complete quantum cooling cycle may be a useful platform for studying quantum thermodynamics just as the quantum heat engine does. Entropy change is an important feature which can help us to investigate the thermodynamic properties of the single ion cooling process. Here, we analyze the entropy change of the ion and laser field in the single ion cooling cycle by generalizing the idea in Reference (Phys. Rev. Lett. 2015, 114, 043002) to a single ion system. Thermodynamic properties of the single ion cooling process are discussed and it is shown that the Second and Third Laws of Thermodynamics are still strictly held in the quantum cooling process. Our results suggest that quantum cooling cycles are also candidates for the investigation on quantum thermodynamics besides quantum heat engines. View Full-Text
Keywords: thermodynamic properties; entropy exchange; laser cooling; single trapped ion thermodynamic properties; entropy exchange; laser cooling; single trapped ion
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Miao, J.-G.; Wu, C.-W.; Wu, W.; Chen, P.-X. Entropy Exchange and Thermodynamic Properties of the Single Ion Cooling Process. Entropy 2019, 21, 650.

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