Open AccessThe dynamics of quantum correlation between two atoms in a damping Jaynes-Cummings model
Author(s) -
Kun Fan,
Guofeng Zhang
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.130301
Subject(s) - physics , quantum discord , quantum correlation , quantum , measure (data warehouse) , jaynes–cummings model , quantum mechanics , dynamics (music) , correlation , quantum dynamics , quantum optics , statistical physics , mathematics , computer science , database , geometry , acoustics
The geometrical quantum discord (GQD) is an effective measure of quantum correlation in quantum systems. We investigate the dynamics of quantum correlation between two atoms in a damping Jaynes-Cummings (J-C) model according to the geometrical quantum discord. The evolutional characteristics of GQD are given for both the resonant and non-resonant cases; moreover, the effect of damping on GQD is revealed.