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Optical operation of ultracold atomic quasi-clusters

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Abstract.

We report several exact solutions of a two-dimensional (2D) Gross-Pitaevskii equation with an optical lattice potential, which describe the motion of an array of ultracold atomic quasi-clusters in a Bose-Einstein condensate. The velocity of the atomic quasi-clusters can be controlled by adjusting the optical potential strength so that one can stop or drive them by the optical brake. The atomic quasi-clusters form a superfluid for the propagation state or a critical insulator for the non-propagation one, and the brake and drive are associated with the quantum phase transitions between the insulator and superfluid.

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Authors and Affiliations

  1. Department of Physics, Hunan Normal University, 410081, Changsha, P.R. China

    Wenhua Hai, Guishu Chong, Qiongtao Xie & Jing Lu

Authors
  1. Wenhua Hai
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  2. Guishu Chong
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  3. Qiongtao Xie
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  4. Jing Lu
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Correspondence to Wenhua Hai.

Additional information

Received: 3 February 2003

PACS:

03.75.-b Matter waves - 05.70.Jk Critical point phenomena - 05.30.Jp Boson systems - 67.90. + z Other topics in quantum fluids and solids; liquid and solid helium

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Hai, W., Chong, G., Xie, Q. et al. Optical operation of ultracold atomic quasi-clusters. Eur. Phys. J. D 28, 267–272 (2004). https://doi.org/10.1140/epjd/e2003-00312-5

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