Efficient multipartite entanglement concentration protocol for nitrogen-vacancy center and microresonator coupled systems

Efficient multipartite entanglement concentration protocol for nitrogen-vacancy center and... Here in this study we propose an efficient entanglement concentration protocol (ECP) for separate nitrogen-vacancy (NV) centers, resorting to the single-photon input–output process of the NV center and microtoroidal resonator coupled system. In the proposed ECP, one ancillary single-photon is prepared and passed through a hybrid quantum circuit. By measuring the photon under the suitable polarization basis, maximally entangled state between the separate NV centers can be obtained with a certain success probability. The solid entanglement will be preserved during the process, which can be iterated several rounds to obtain an optimal total success probability. We also discuss the experimental feasibility of the protocol by considering current technologies, and we believe that the protocol is useful in the future applications of long-distance quantum communication and distributed quantum computation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Efficient multipartite entanglement concentration protocol for nitrogen-vacancy center and microresonator coupled systems

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Publisher
Springer Journals
Copyright
Copyright © 2015 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/s11128-015-0924-1
Publisher site
See Article on Publisher Site

Abstract

Here in this study we propose an efficient entanglement concentration protocol (ECP) for separate nitrogen-vacancy (NV) centers, resorting to the single-photon input–output process of the NV center and microtoroidal resonator coupled system. In the proposed ECP, one ancillary single-photon is prepared and passed through a hybrid quantum circuit. By measuring the photon under the suitable polarization basis, maximally entangled state between the separate NV centers can be obtained with a certain success probability. The solid entanglement will be preserved during the process, which can be iterated several rounds to obtain an optimal total success probability. We also discuss the experimental feasibility of the protocol by considering current technologies, and we believe that the protocol is useful in the future applications of long-distance quantum communication and distributed quantum computation.

Journal

Quantum Information ProcessingSpringer Journals

Published: Jan 22, 2015

References

  • Hyperentanglement concentration for two-photon four-qubit systems with linear optics
    Ren, BC; Du, FF; Deng, FG
  • Efficient polarization entanglement concentration for electrons with charge detection
    Sheng, YB; Deng, FG; Zhou, HY
  • Optimal multipartite entanglement concentration of electron-spin states based on charge detection and projection measurements
    Ren, BC; Wei, HR; Li, T; Hua, M; Deng, FG
  • Quantum entanglement between an optical photon and a solid-state spin qubit
    Togan, E; Chu, Y; Trifonov, AS; Jiang, L; Maze, J; Childress, L; Dutt, MVG; Sorensen, AS; Hemmer, PR; Zibrov, AS; Lukin, MD
  • Compact quantum gates on electron-spin qubits assisted by diamond nitrogen-vacancy centers inside cavities
    Wei, HR; Deng, FG
  • Chip-based microcavities coupled to nitrogen-vacancy centers in single crystal diamond
    Barclay, PE; Fu, FMC; Santori, C; Beausoleil, RG
  • Efficient routing of single photons by one atom and a microtoroidal cavity
    Aoki, T; Parkins, AS; Alton, DJ; Regal, CA; Dayan, B; Ostby, E; Vahala, KJ; Kimble, HJ

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