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Nearly Deterministic Generation of Atomic Entangled State with Weak Cross-Kerr Nonlinearities

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Abstract

Scheme for generating atomic entangled state is revisited. With the help of quantum nondemolition measurements, the present generation scheme can be succeeded in a nearly deterministic way. This improvement makes the present scheme more efficient than the schemes using nonunitary projective measurements, which are of probabilistic nature. Discussions show that our scheme is feasible within the current experimental technology.

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Acknowledgements

We acknowledge fruitful discussions and hints with Zhuo-liang Cao and Ming Yang. This work is supported by the NSFC (Nos. 11004065 and 10905024), the Program of the Education Department of Anhui Province (No. KJ2012B075) and the project of Anhui Xinhua University (No. 2011zr005).

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Authors and Affiliations

  1. Anhui Xinhua University, Hefei, 230088, China

    Jian Zhou

  2. Laboratory of Quantum Information Technology, and School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510006, China

    Jian Zhou & Zheng-Yuan Xue

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  1. Jian Zhou
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  2. Zheng-Yuan Xue
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Correspondence to Zheng-Yuan Xue.

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Zhou, J., Xue, ZY. Nearly Deterministic Generation of Atomic Entangled State with Weak Cross-Kerr Nonlinearities. Int J Theor Phys 51, 2307–2311 (2012). https://doi.org/10.1007/s10773-012-1110-1

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  • DOI: https://doi.org/10.1007/s10773-012-1110-1

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