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Controllable band loops of ultracold atoms in a cavity

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Abstract

We theoretically investigate the atomic energy band of ultracold atoms inside a laser-driven optical cavity with Kerr medium. This cavity-atom hybrid system has two kinds of interactions: photon-atom interaction and photon-photon one. We find the loops of the atomic energy band induced by photon-atom interaction disappear when the Kerr interaction between photons exceeds a critical value. The reason of the controllably atomic energy band loops by Kerr interaction is discussed.

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Authors and Affiliations

  1. School of Mathematics and Computer Science, Guizhou Normal University, Guiyang, 550001, P.R. China

    Q. Zheng

  2. Institute of Applied Physics and Computational Mathematics, P.O. Box 8009 (28), Beijing, 100088, P.R. China

    Q. Zheng, S. C. Li & L. B. Fu

Authors
  1. Q. Zheng
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  2. S. C. Li
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  3. L. B. Fu
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Correspondence to L. B. Fu.

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Zheng, Q., Li, S.C. & Fu, L.B. Controllable band loops of ultracold atoms in a cavity. Eur. Phys. J. D 66, 271 (2012). https://doi.org/10.1140/epjd/e2012-30288-8

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  • DOI: https://doi.org/10.1140/epjd/e2012-30288-8

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