2008•Communications in Theoretical PhysicsOpen access

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

Yunxia Ping, Ze Cheng, Zhang Bo, Zhengze Cheng

Abstract

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 exists a certain squeeze angle in which the entanglement exists continuously.

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Key concepts: Quantum entanglement, Physics, Field (mathematics), Mode (computer interface), Quantum mechanics, Squashed entanglement, Coherent states, Quantum