Entanglement Properties of Two-Mode Squeezed Coherent States in Radiation Field

• 来源期刊: 理论物理通讯(英文版)
• 年，卷（期）: 2008,（4）
• 页码范围: 1013-1016
• 页数: 4页
• 语种: 英文

摘要

Entanglement properties of two-mode squeezed coherent states in the radiation field are investigated according to the entanglement criterion [Phys. Rev. Lett. 84 (2000) 2722]. The dependence of entanglement on squeeze angle and squeeze parameter is discussed. It shows that the system evolves into entangled states and entanglement does not increase persistently with the increase of squeeze angle and squeeze parameter. There only ex/sts a certain squeeze angle in which the entanglement exists continuously.