Entanglement and quantum discord in the cavity QED models

Abstract

We investigate the quantum correlation between light and matter in bipartite quantum systems, drawing on the Jaynes-Cummings model and the Tavis-Cummings model, which are well-established in cavity quantum electrodynamics. Through the resolution of the quantum master equation, we can derive the dissipative dynamics in open systems. To assess the extent of quantum correlation, several measures are introduced: von Neumann entropy, concurrence and quantum discord. The effects of initial entanglement and dissipation intensity on quantum discord are carefully examined. Furthermore, we examined the dynamics of quantum discord within the ${\mathrm{OH}}^{+}$ model.

10 pages, 8 figures

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Cited by in corpus (4)

• Simulating and investigating various dynamic aspects of the ${\mathrm{H}}_2\mathrm{O}$-related hydrogen bond model
• Quantum electrodynamic description of ionization of the neutral hydrogen molecule
• Studying the effect of phonon coherence and inflow on hydrogen bond formation in the $[({\mathrm{H}}_2\mathrm{O}{)}_2{]}^m$ cluster
• Simulating and comparing the quantum and classical mechanical motion of two hydrogen atoms