Entanglement-assisted quantum logic gates for two remote qubits

Entanglement-assisted quantum logic gates for two remote qubits We propose a protocol to realize quantum logic gates for two remote qubits via entanglement swapping. According to the scheme of quantum repeater presented by H.-J. Briegel et al., we can complete long-distance communication and computation. Compared with previous schemes through noisy channels, our protocol can overcome the limitation that error probability scales exponentially with the length of the channel. We illustrate this protocol in cavity QED system, but the idea can also be realized in other physical systems. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physics Letters A Elsevier

Entanglement-assisted quantum logic gates for two remote qubits

Physics Letters A, Volume 372 (16) – Apr 14, 2008

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Publisher
Elsevier
Copyright
Copyright © 2008 Elsevier B.V.
ISSN
0375-9601
D.O.I.
10.1016/j.physleta.2007.12.059
Publisher site
See Article on Publisher Site

Abstract

We propose a protocol to realize quantum logic gates for two remote qubits via entanglement swapping. According to the scheme of quantum repeater presented by H.-J. Briegel et al., we can complete long-distance communication and computation. Compared with previous schemes through noisy channels, our protocol can overcome the limitation that error probability scales exponentially with the length of the channel. We illustrate this protocol in cavity QED system, but the idea can also be realized in other physical systems.

Journal

Physics Letters AElsevier

Published: Apr 14, 2008

References

  • Quantum Computation and Quantum Information
    Nielsen, M.A.; Chuang, I.L.
  • Phys. Rev. Lett.
    Serafini, A.
  • Phys. Rev. Lett.
    Childress, L.; Taylor, J.M.

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