Sideband entanglement in collective resonance fluorescence  

作　　者：张雪华 胡响明 

机构地区：[1]School of Physical Science and Technology,Central China Normal University

出　　处：《Chinese Physics B》2011年第11期261-266,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.11074086);the Natural Science Foundation of Hubei Province,China(Grant No.2010CDA075)

摘　　要：We examine the quantum correlation between the Mollow sidebands in the collective resonance fluorescence from a strongly driven ensemble of two-level atoms. By using the criterion proposed by Shchukin and Vogel, we show that non-Gaussian entanglement exists between the two separated sidebands. The responsible mechanism is traced to the spontaneous parametric process, in which the nonclassical correlation is established. This suggests that the collective resonance fluorescence provides a continuous source for the non-Gaussian entangled light and thus has great potentials for various applications in quantum information and quantum computation.We examine the quantum correlation between the Mollow sidebands in the collective resonance fluorescence from a strongly driven ensemble of two-level atoms. By using the criterion proposed by Shchukin and Vogel, we show that non-Gaussian entanglement exists between the two separated sidebands. The responsible mechanism is traced to the spontaneous parametric process, in which the nonclassical correlation is established. This suggests that the collective resonance fluorescence provides a continuous source for the non-Gaussian entangled light and thus has great potentials for various applications in quantum information and quantum computation.

关 键 词：collective resonance fluorescence non-Gaussian entanglement spontaneous parametricinteraction 

分 类 号：O431.2[机械工程—光学工程]