Quantum Nonlocally Correlated Observables for Non-Gaussian States  

作　　者：LI Hong-Rong LI Fu-Li ZHU Shi-Yao 李宏荣;李福利;朱诗尧(MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter and Department of Applied Physics,Xi’an Jiaotong University,Xi’an 710049;Department of Physics,Hong Kong Baptist University,Hong Kong,China)

机构地区：[1]MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter and Department of Applied Physics,Xi’an Jiaotong University,Xi’an 710049 [2]Department of Physics,Hong Kong Baptist University,Hong Kong,China

出　　处：《Chinese Physics Letters》2011年第5期50-53,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10774117 and 60778021.

摘　　要：Quantum nonlocally correlated observables of the squeezed Bell-like states are investigated.We find that the higher amount of the entanglement does not always mean the stronger correlation of positions and momentums in the non-Gaussian states such as the photon-added states and the squeezed number states.Quantum nonlocal correlations of the amplitude-squared operators signal the entanglement existence of all the squeezed Bell-like states.

关 键 词：GAUSSIAN STATES OPERATORS 

分 类 号：O41[理学—理论物理]