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.
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)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 10774117 and 60778021.
