Entanglement bounds of tripartite squeezed thermal states

Abstract

I propose the multi-mode squeezed thermal state based on the multi-mode pure entangled state. The correlation matrix of the state is characterized by two parameters. I then analysis the separable condition for this state, and calculating the relative entropy of the state with respect to the same kind of fully separable state in order to provide an upper bound of the relative entropy of entanglement. The bound is compared with the other bounds which were obtained with reduced state.

9 pages, 3 figures

References in corpus (5)

• Separability Properties of Three-mode Gaussian States
• Entanglement generation and degradation by passive optical devices
• Bounds on relative entropy of entanglement for multi-party systems
• Greenberger-Horne-Zeilinger nonlocality in phase space
• Bounds for entanglement of formation of two mode squeezed thermal states

Cited by in corpus (3)

• Multimode entanglement and telecloning in a noisy environment
• Optical state engineering, quantum communication, and robustness of entanglement promiscuity in three-mode Gaussian states
• Gaussian entanglement witness and refined Werner-Wolf criterion for continuous variables