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Entanglement Teleportation via One Dissipative Quantum Channel

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Abstract

Entanglement teleportation via one dissipative quantum channel composed by two identical spatially separated atoms in free space is investigated in detail. We mainly study the effects about the channel initial states and the interqubit distance on the entanglement of the output state Cout and the average fidelity F a. It is shown that the magnitude of teleportated entanglement and the average fidelity is strongly dependent on the above factors. For different channel initial states with increasing input entanglement, the teleportated entanglement is zero initially, but at some finite values the teleportated entanglement emerges, and it then increase linearly as these finite input entanglement values are reached. We also obtain that the interqubit distance enhance the teleportated entanglement and the average fidelity peridicly, so we can find a threshold value of the interqubit distance which is most suitable for entanglement teleportation. Meanwhile, the values of the teleportated entanglement and the average fidelity are always zero when the value of the interqubit distance is zero.

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Acknowledgments

This project was supported by the Natural Science Foundation for Young Scientists of Shanxi Province of China (Grant No. 2012021003-3 and NO. 2011021003-3) and the special funds of the National Natural Foundation of China (Grant No. 11247247 and NO. 11147110).

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Authors and Affiliations

  1. School of Physics and Information Engineering, Shanxi Normal University, Linfen, 041004, People’s Republic of China

    Wang Rong & Yang Guo-Hui

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  1. Wang Rong
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  2. Yang Guo-Hui
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Correspondence to Yang Guo-Hui.

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Rong, W., Guo-Hui, Y. Entanglement Teleportation via One Dissipative Quantum Channel. Int J Theor Phys 53, 3948–3957 (2014). https://doi.org/10.1007/s10773-014-2146-1

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  • DOI: https://doi.org/10.1007/s10773-014-2146-1

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