Quantum Nonlocally Correlated Observables for Non-Gaussian States
LI Hong-Rong1**, LI Fu-Li1, ZHU Shi-Yao2
1MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter and Department of Applied Physics, Xi'an Jiaotong University, Xi'an 710049 2Department of Physics, Hong Kong Baptist University, Hong Kong
Quantum Nonlocally Correlated Observables for Non-Gaussian States
LI Hong-Rong1**, LI Fu-Li1, ZHU Shi-Yao2
1MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter and Department of Applied Physics, Xi'an Jiaotong University, Xi'an 710049 2Department of Physics, Hong Kong Baptist University, Hong Kong
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.
Abstract：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.
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2011, Vol. 28 
