Efficient hyperentanglement concentration for N-particle Greenberger–Horne–Zeilinger state assisted by weak cross-Kerr nonlinearity

Efficient hyperentanglement concentration for N-particle Greenberger–Horne–Zeilinger state... In this scheme, based on the weak cross-Kerr nonlinearity, an hyperconcentration protocol for the arbitrary partially hyperentangled N-particle Greenberger–Horne–Zeilinger (GHZ) state is presented. Considering the N photons initially in the nonmaximally hyperentangled GHZ state in which photons are entangled simultaneously in the polarization and the spatial-mode degrees of freedom, we can obtain the maximally hyperentangled N-particle GHZ state by the projection measurements on the additional photons. Numerical simulation demonstrates that by iterating the entanglement concentration process, we can improve the success probability of the scheme. Furthermore, we discuss the feasibility of the setups of the protocol, concluding that the present protocol is feasible with existing experimental technology. All these advantages make this scheme more efficient and more convenient in quantum communication. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Efficient hyperentanglement concentration for N-particle Greenberger–Horne–Zeilinger state assisted by weak cross-Kerr nonlinearity

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Publisher
Springer US
Copyright
Copyright © 2016 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-016-1258-3
Publisher site
See Article on Publisher Site

References

  • Quantum teleportation of multiple degrees of freedom of a single photon
    Wang, XL; Cai, XD; Su, ZE; Chen, MC; Wu, D; Li, L; Liu, NL; Lu, CY; Pan, JW
  • Hybrid entanglement purification for quantum repeaters
    Sheng, YB; Zhou, L; Long, GL
  • Efficient entanglement concentration for arbitrary less-entangled NOON states
    Zhou, L; Sheng, YB; Cheng, Wen W; Gong, LY; Zhao, S Mei
  • Hyperentanglement concentration for two-photon four-qubit systems with linear optics
    Ren, BC; Du, FF; Deng, FG
  • Efficient entanglement concentration for arbitrary less-hyperentanglement multi-photon W states with linear optics
    Fan, LL; Xia, Y; Song, J
  • Efficient multipartite entanglement concentration protocol for nitrogen-vacancy center and microresonator coupled systems
    Cao, C; Ding, H; Li, Y; Wang, TJ; Mi, SC; Zhang, R; Wang, C
  • High-efficiency atomic entanglement concentration for quantum communication network assisted by cavity QED
    Wang, GY; Li, T; Deng, FG

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