Detection of bound entanglement in continuous-variable systems

Cheng Jie Zhang, Hyunchul Nha, Yong Sheng Zhang, Guang Can Guo

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Abstract

We present several entanglement conditions in order to detect bound entangled states in continuous-variable systems. Specifically, Werner and Wolf [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett.86.3658 86, 3658 (2001)] and Horodecki and Lewenstein [Phys. Rev. Lett.PRLTAO0031-900710.1103/PhysRevLett. 85.2657 85, 2657 (2000)] have proposed examples of a bound entangled Gaussian state and a bound entangled non-Gaussian state, respectively, of which entanglement can be detected by using our entanglement conditions.

Original languageEnglish
Article number032323
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume82
Issue number3
DOIs
Publication statusPublished - 23 Sep 2010

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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