Multipartite quantum correlations among atoms in QED cavities
J. Batle , A. Farouk , O. Tarawneh , S. Abdalla
Front. Phys. ›› 2018, Vol. 13 ›› Issue (1) : 130305
Multipartite quantum correlations among atoms in QED cavities
We study the nonlocality dynamics for two models of atoms in cavity quantum electrodynamics (QED); the first model contains atoms in a single cavity undergoing nearest-neighbor interactions with no initial correlation, and the second contains atoms confined in ndifferent and noninteracting cavities, all of which were initially prepared in a maximally correlated state of nqubits corresponding to the atomic degrees of freedom. The nonlocality evolution of the states in the second model shows that the corresponding maximal violation of a multipartite Bell inequality exhibits revivals at precise times, defining, nonlocality sudden deathsand nonlocality sudden rebirths, in analogy with entanglement. These quantum correlations are provided analytically for the second model to make the study more thorough. Differences in the first model regarding whether the array of atoms inside the cavity is arranged in a periodic or open fashion are crucial to the generation or redistribution of quantum correlations. This contribution paves the way to using the nonlocality multipartite correlation measure for describing the collective complex behavior displayed by slightly interacting cavity QED arrays.
quantum optics / cavity quantum electrodynamics / multipartite nonlocality
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Higher Education Press and Springer-Verlag Berlin Heidelberg
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