Acta Optica Sinica, Volume. 37, Issue 8, 0827001(2017)
Effect of Interatomic Distance in Photonic Band Gap on Entanglement Evolution Property Among Three Atoms
In the model of photonic band gap, the entanglement dynamical evolution of a system where three two-level atoms interact with a heat reservoir is investigated. The entanglement among systems is described by using the pseudo-mode theory and the tripartite negative eigenvalue method. The effects of the heat-reservoir spectral density function, the detuning between the atoms and pseudo modes, and the interatomic dipole-dipole interaction strength on the three-atom entanglement evolution are analyzed by means of numerical calculation. The results show that in a perfect band gap model, the trapping phenomenon appears in the interatomic entanglement evolution versus time. The detuning between the atoms and pseudo modes makes the interatomic entanglement show a non-monotonic transition. The three-atom entanglement degree increases with the increase of the interatomic distance.
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Li Yan. Effect of Interatomic Distance in Photonic Band Gap on Entanglement Evolution Property Among Three Atoms[J]. Acta Optica Sinica, 2017, 37(8): 0827001
Category: Quantum Optics
Received: Feb. 7, 2017
Accepted: --
Published Online: Sep. 7, 2018
The Author Email: Yan Li (yanli_yafang@126.com)