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4 papers · 2 filters
Detecting modified vacuum fluctuations due to presence of a boundary by means of the geometric phase
Hongwei Yu, Jiawei Hu
We study the geometric phase acquired by an inertial atom whose trajectories are parallel to a reflecting boundary due its coupling to vacuum fluctuations of electromagnetic fields…
Spontaneous excitation of a uniformly accelerated atom coupled with vacuum Dirac field fluctuations
Wenting Zhou, Hongwei Yu
We study the spontaneous excitation of a uniformly accelerated two-level atom non-linearly coupled with vacuum Dirac field fluctuations using the formalism proposed by Dalibard, Du…
Quantum discord amplification induced by quantum phase transition via a cavity-Bose-Einstein-condensate system
Ji-Bing Yuan, Le-Man Kuang
We propose a theoretical scheme to realize a sensitive amplification of quantum discord (QD) between two atomic qubits via a cavity-Bose-Einstein condensate (BEC) system which was…
Geometric phase for an accelerated two-level atom and the Unruh effect
Jiawei Hu, Hongwei Yu
We study, in the framework of open quantum systems, the geometric phase acquired by a uniformly accelerated two-level atom undergoing nonunitary evolution due to its coupling to a…