Multipartite quantum correlations among atoms in QED cavities
Multipartite quantum correlations among atoms in QED cavities作者机构：Departament de Fisica Universitat de les Illes Balears 07122 Palma de Mallorca Balearic Islands Spain Faculty of Computer and Information Sciences Mansoura University Egypt Information Technology Department Al-Zahra College for Women P.O. Box 3365 Muscat Oman Department of Physics Faculty of Science King Abdulaziz University Jeddah P.O. Box 80203. Jeddah 21589 Saudi Arabia
出 版 物：《Frontiers of physics》 (物理学前沿（英文版）)
年 卷 期：2018年第13卷第1期
页 面：163-178页
核心收录：
学科分类：07[理学] 08[工学] 080203[工学-机械设计及理论] 070203[理学-原子与分子物理] 0802[工学-机械工程] 0704[理学-天文学] 0702[理学-物理学]
主 题：quantum optics cavity quantum electrodynamics multipartite nonlocality
摘 要：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 tile second contains atoms confined in n different and noninteracting cavities, all of which were initially prepared in a maximally correlated state of n qubits 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 deaths and 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.
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