Author:
Zhang Wanhe,Liu Xiaobao,Yang Tingli
Abstract
AbstractWe investigate, in the paradigm of open quantum systems, the dynamics of quantum coherence of a circularly accelerated atom coupled to a bath of vacuum fluctuating massless scalar field in a spacetime with a reflecting boundary. The master equation that governs the system evolution is derived. Our results show that in the case without a boundary, the vacuum fluctuations and centripetal acceleration will always cause the quantum coherence to decrease. However, with the presence of a boundary, the quantum fluctuations of the scalar field are modified, which makes that quantum coherence could be enhanced as compared to that in the case without a boundary. Particularly, when the atom is very close to the boundary, although the atom still interacts with the environment, it behaves as if it were a closed system and quantum coherence can be shielded from the effect of the vacuum fluctuating scalar field.
Funder
Guizhou Provincial Science and Technology Planning Project of China
National Natural Science Foundation of China
The talent recruitment program of Liupanshui normal university of China
The Young scientific talents growth project of the department of education of the department of education of Guizhou province
The big data astronomy and physics science and technology innovation team of Liupanshui Normal University
Publisher
Springer Science and Business Media LLC
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