Frozen Condition of Quantum Coherence for Atoms on a Stationary Trajectory

Frozen Condition of Quantum Coherence for Atoms on a Stationary Trajectory

The quantum coherence (QC) of two comoving atoms on a stationary trajectory is investigated. We develop a formalism to characterize the properties of atoms on a stationary trajectory. We give a criterion under which QC is frozen to a nonzero value. The frozen condition that vanishing super- or subra...

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Bibliographic Details
Published in:Physical review letters 2018-08, Vol.121 (7), p.073602-073602, Article 073602
Main Authors: Zhang, Anwei, Zhang, Keye, Zhou, Lan, Zhang, Weiping
Format: Article
Language:eng
Subjects:
Coherence
Decay rate
Quantum phenomena
Trajectories
Online Access:Get full text
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Summary:The quantum coherence (QC) of two comoving atoms on a stationary trajectory is investigated. We develop a formalism to characterize the properties of atoms on a stationary trajectory. We give a criterion under which QC is frozen to a nonzero value. The frozen condition that vanishing super- or subradiant decay rate is not so sensitive to the initial condition of state. We show that enhanced QC and a subradiant state can be gained from the initial state.
ISSN:0031-9007
1079-7114