A nearly deterministic scheme for generating χ-type entangled states with weak cross-Kerr nonlinearities

A nearly deterministic scheme for generating χ-type entangled states with weak cross-Kerr... We propose a generation scheme of χ-type entangled states based on weak cross-Kerr nonlinearities. After Homodyne measurement, the individual photons can be entangled together with the help of coherent states. Assisted with classical feed-forward, the generation efficiency of the entangled state nearly approaches unity. Depending on the currently available optical elements and techniques such as beam splitters, reflection mirrors, polarization beam splitters and classical feed-forward, the present scheme is expectable to realize in experiment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

A nearly deterministic scheme for generating χ-type entangled states with weak cross-Kerr nonlinearities

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Publisher
Springer US
Copyright
Copyright © 2012 by Springer Science+Business Media, LLC
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/s11128-012-0481-9
Publisher site
See Article on Publisher Site

References

  • Hierarchical quantum-information splitting
    Wang, X.W.; Xia, L.X.; Wang, Z.Y.; Zhang, D.Y.
  • Generation of a genuine four-particle entangled state of trap ions
    Shi, Y.L.; Mei, F.; Yu, Y.F.; Feng, X.L.; Zhang, Z.M.
  • Quantum non-demolition measurement of photon number using weak nonlinearities
    Gerry, C.C.; Bui, T.

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