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Quantum Information Splitting of an Arbitrary Three-Atom State with χ-state in Cavity QED

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Abstract

We propose a scheme for implementing the deterministic quantum information splitting (QIS) of an arbitrary three-atom state in cavity QED. In the scheme, a four-atom χ-state and a three-atom GHZ state are used as quantum channel. In comparison with the QIS scheme by using the same quantum channel (Luo and Deng in Quantum. Inf. Process. 12:773, 2013), our scheme does not involve joint Bell-state measurements, one only needs to perform the single-atom measurements. Our scheme is not sensitive to both the cavity decay and the atom radiation, which is of importance in view of experiment.

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Acknowledgements

This work is supported by the National Natural Science Foundation of China (Grant No. 61265001), the Natural Science Foundation of Jiangxi Province, China (Grant No. 20122BAB202005), the Research Foundation of state key laboratory of advanced optical communication systems and networks, Shanghai Jiao Tong University, China (2011GZKF031104), and the Research Foundation of the Education Department of Jiangxi Province.

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Authors and Affiliations

  1. Department of Physics, Jiangxi Normal University, Nanchang, 330022, China

    Yi-you Nie, Yuan-hua Li, Xian-ping Wang & Ming-huang Sang

  2. Key Laboratory of Optoelectronic and Telecommunication of Jiangxi Province, Nanchang, 330022, China

    Yi-you Nie & Yuan-hua Li

  3. State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, 200240, China

    Yi-you Nie

Authors
  1. Yi-you Nie
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  2. Yuan-hua Li
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  3. Xian-ping Wang
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  4. Ming-huang Sang
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Corresponding author

Correspondence to Yi-you Nie.

Appendix

Appendix

Alice’s possible results and the corresponding possible joint states for Bob and Charlie, where the normalization factors have been omitted for convenience (Table 1).

Table 1 The outcome of measurements performed by Alice, and the corresponding states obtained by Bob and Charlie
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Nie, Yy., Li, Yh., Wang, Xp. et al. Quantum Information Splitting of an Arbitrary Three-Atom State with χ-state in Cavity QED. Int J Theor Phys 52, 3844–3852 (2013). https://doi.org/10.1007/s10773-013-1692-2

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  • DOI: https://doi.org/10.1007/s10773-013-1692-2

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