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Discriminating 16 Mutually Orthogonal 4-Atom Cluster States Via Cavity Qed In Teleporting Arbitrary Unknown Two-Atom State With A 4-Atom Cluster State As Quantum Channel

Author

Listed:
  • WEN ZHANG

    (School of Physics & Material Science, Anhui University, Hefei 230039, China)

  • YI-MIN LIU

    (Department of Physics, Shaoguan University, Shaoguan 512005, China)

  • ZHANG-YIN WANG

    (School of Physics & Material Science, Anhui University, Hefei 230039, China)

  • ZHAN-JUN ZHANG

    (School of Physics & Material Science, Anhui University, Hefei 230039, China;
    Department of Physics and Center for Quantum Information Science, National Cheng Kung University, Tainan 70101, Taiwan)

Abstract

We propose a scheme for discriminating 16 mutually orthogonal 4-atom cluster entangled states (CES) via cavity QED in teleporting an arbitrary unknown two-atom state with a 4-atom CES as quantum channel. Utilizing the interaction of atoms with cavity and classical field, the complicated 4-atom CESs are transformed into the simple 4-atom product states. Hence the difficulty of measurement during the teleportation process is degraded. In the present scheme, we allow for the case of a strong classical driving field and the detuning between the atoms and the cavity is assumed large enough. Thereby the photon-number-dependent parts in the effective Hamiltonian can be neglected, and the scheme is insensitive to both the cavity decay and the thermal field.

Suggested Citation

  • Wen Zhang & Yi-Min Liu & Zhang-Yin Wang & Zhan-Jun Zhang, 2008. "Discriminating 16 Mutually Orthogonal 4-Atom Cluster States Via Cavity Qed In Teleporting Arbitrary Unknown Two-Atom State With A 4-Atom Cluster State As Quantum Channel," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 19(05), pages 741-747.
    • Handle: RePEc:wsi:ijmpcx:v:19:y:2008:i:05:n:s0129183108012455
    DOI: 10.1142/S0129183108012455
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