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A new bipartite entangled state describing the parametric down-conversion process and its applications in quantum optics

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【Author】 Meng Xiang-Guo a),Wang Ji-Suo a)b),and Zhang Xiao-Yan c) a) Department of Physics,Liaocheng University,Liaocheng 252059,China b) Shandong Provincial Key Laboratory of Laser Polarization and Information Technology,College of Physics and Engineering,Qufu Normal University,Qufu 273165,China c) Department of Physics,Heze University,Heze 274015,China

【机构】 Department of Physics,Liaocheng University； Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, College of Physics and Engineering,Qufu Normal University； Department of Physics,Heze University；

【摘要】 We construct a new bipartite entangled state(NBES),which describes both the squeezing and the entanglement involved in the parametric down-conversion process and can be produced using a symmetric beam splitter.Constructing asymmetric ket-bra integrations based on the NBES leads to some new squeezing operators,which clearly exhibit the relationships between squeezing and entangled state transformations.Moreover,an entangled Wigner operator with a definite physical meaning is also presented.更多还原

【Abstract】 We construct a new bipartite entangled state(NBES),which describes both the squeezing and the entanglement involved in the parametric down-conversion process and can be produced using a symmetric beam splitter.Constructing asymmetric ket-bra integrations based on the NBES leads to some new squeezing operators,which clearly exhibit the relationships between squeezing and entangled state transformations.Moreover,an entangled Wigner operator with a definite physical meaning is also presented.更多还原

【关键词】 new bipartite entangled state； quantum optics； beam splitter； squeezing operator； entangled Wigner operator；
【Key words】 new bipartite entangled state； quantum optics； beam splitter； squeezing operator； entangled Wigner operator；

【基金】 Project supported by the National Natural Science Foundation of China (Grant No. 11147009);the Natural Science Foundation of Shandong Province,China (Grant Nos. ZR2010AQ027 and ZR2012AM004);the Shandong Provincial Higher Educational Science and Technology Program,China (Grant No. J10LA15)

【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2012年10期

【分类号】O431.2
【下载频次】34

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