Quantum Nonlocally Correlated Observables for Non-Gaussian States

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2011,（5）
• 页码范围: 50-53
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/28/5/050310

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.