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Approximate conditional teleportation of a \(\varLambda \)-type three-level atomic state based on cavity QED method beyond Bell-state measurement

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Abstract

Inspiring from the scheme proposed in (Zheng in Phys Rev A 69:064,302 2004), our aim is to teleport an unknown qubit atomic state using the cavity QED method without using the explicit Bell-state measurement, and so the additional atom is not required. Two identical \(\varLambda \)-type three-level atoms are interacted separately and subsequently with a two-mode quantized cavity field where each mode is expressed with a single-photon field state. The interaction between atoms and field is well described via the Jaynes–Cummings model. It is then shown that how if the atomic detection results a particular state of atom 1, an unknown state can be appropriately teleported from atom 1 to atom 2. This teleportation procedure successfully leads to the high fidelity F (success probability \(P_g\)) in between \(69\%\lesssim F\lesssim 100\%\) (\(0.14\lesssim P_g\lesssim 0.56\)). At last, we illustrated that our scheme considerably improves similar previous proposals.

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Acknowledgements

The authors are thankful to the referees for their useful suggestions which considerably improved the content of our paper.

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Authors and Affiliations

  1. Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd, Iran

    N. Sehati & M. K. Tavassoly

  2. The Laboratory of Quantum Information Processing, Yazd University, Yazd, Iran

    M. K. Tavassoly

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  1. N. Sehati
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Correspondence to M. K. Tavassoly.

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Sehati, N., Tavassoly, M.K. Approximate conditional teleportation of a \(\varLambda \)-type three-level atomic state based on cavity QED method beyond Bell-state measurement. Quantum Inf Process 16, 193 (2017). https://doi.org/10.1007/s11128-017-1643-6

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  • DOI: https://doi.org/10.1007/s11128-017-1643-6

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