Entropy Exchange and Thermodynamic Properties of the Single Ion Cooling Process.

Autor: Miao JG; Interdisciplinary Center for Quantum Information, National University of Defense Technology, Changsha 410073, China., Wu CW; Interdisciplinary Center for Quantum Information, National University of Defense Technology, Changsha 410073, China., Wu W; Interdisciplinary Center for Quantum Information, National University of Defense Technology, Changsha 410073, China., Chen PX; Interdisciplinary Center for Quantum Information, National University of Defense Technology, Changsha 410073, China.
Jazyk: angličtina
Zdroj: Entropy (Basel, Switzerland) [Entropy (Basel)] 2019 Jul 01; Vol. 21 (7). Date of Electronic Publication: 2019 Jul 01.
DOI: 10.3390/e21070650
Abstrakt: 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.
Databáze: MEDLINE
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