Efficient nonlocal entangled state distribution over the collective-noise channel

  • Authors:

  • Yan Xia;Lin-Lin Fan;Si-Yang Hao;Juan He;Jie Song;Rong-Shan Wei;Li-Qin Huang

  • Affiliations:

  • Department of Physics, Fuzhou University, Fuzhou, China 350002;Department of Physics, Fuzhou University, Fuzhou, China 350002;Department of Physics, Fuzhou University, Fuzhou, China 350002;College of Physics and Energy, Fujian Normal University, Fuzhou, China 350007;Department of Physics, Harbin Institute of Technology, Harbin, China 150001;College of Physics and Information Engineering, Fuzhou University, Fuzhou, China 350108;College of Physics and Information Engineering, Fuzhou University, Fuzhou, China 350108

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

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Abstract

We propose an efficient nonlocal entanglement distribution protocol (EDP) to purify the two-photon polarization-entangled state, resorting to the projection measurement on the additional photons. With the help of the cross-Kerr nonlinearity, two remote parties can share two-photon maximally entangled polarization state from the arbitrary two-photon states with a certain success probability by iterating the entanglement purification process 6 times. Compared with conventional EDPs, the present one can obtain maximally entangled polarization state over an collective-noise channel with deterministic success probability. That is, the EDP is an optimal one.