Abstract
Geometrical quantum discord (GQD) is adopted to quantify the degree of correlation between two subsystems. We consider the situation that two two-level atoms are separately trapped in coupled single-mode cavities, and each atom non-resonantly interacts with cavity via a one-photon hopping. GQD dynamic between atoms and that between cavities are studied. The influences of detuning on GQD dynamics are discussed. The results obtained by the numerical method show that GQD between atoms is strengthened with the increase of the detuning. Contrarily, GQD between cavities is weakened with the increase of the detuning.
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