Realignment entanglement criterion of phase damped Gaussian states

  • Authors:

  • Xiao-Yu Chen

  • Affiliations:

  • College of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou, China 310018

  • Venue:
  • Quantum Information Processing
  • Year:
  • 2013

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Abstract

We derive the realignment entanglement criterion for non-Gaussian states prepared by two mode symmetric Gaussian states undergoing phase damping. The entanglement detecting ability is compared with that of second moment criterion and Fock space criterion of positive partial transpose. New non-Gaussian entangled states are detected.