Nearly deterministic Bell measurement using quantum communication bus

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Abstract

We present a scheme to implement Bell states measurement for an arbitrary number of photons by using robust continuous variable coherent modes, called as quantum communication bus (qubus) and weak cross-Kerr nonlinearities. Remarkably, the success probability of our scheme is close to unity, and our scheme does not require any ancillary resource entanglement. Our scheme is likely to yield versatile applications for quantum computation and quantum teleportation.

Keywords

Bell states measurement Cross-Kerr nonlinearities Qubus 

Notes

Acknowledgements

This work was supported by the National Science Foundation of China under Grant Nos. 11575001, 61275119 and 61601002, Anhui Provincial Natural Science Foundation (Grant No. 1508085QF139) and also by the Natural Science Research Project of Education Department of Anhui Province of China under Grant No. KJ2013A205.

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  • Jia-Ming Wang
    • 1
  • Meng-zheng Zhu
    • 1
  • Dong Wang
    • 1
  • Liu Ye
    • 1
  1. 1.School of Physics & Material ScienceAnhui UniversityHefeiChina

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