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Dynamical Properties of Vortices in a Bose-Einstein Condensate in a Rotating Lattice

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Abstract

We present simulation results of the vortex dynamics in a trapped Bose-Einstein condensate in the presence of a rotating optical lattice. Changing the potential amplitude and the relative rotation frequency between the condensate and the optical lattice, we find a rich variety of dynamical phases of vortices. In particular, when the optical lattice rotates faster than the condensate, the competition between the pinning force and the interactions by nucleated interstitial vortices leads to the melting of vortex lattice, yielding a vortex liquid phase.

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Authors and Affiliations

  1. Department of General Education, Ishikawa National College of Technology, Tsubata, Ishikawa, 929-0392, Japan

    Kenichi Kasamatsu

  2. Department of Physics, Osaka City University, Sumiyoshi-Ku, Osaka, 558-8585, Japan

    Makoto Tsubota

Authors
  1. Kenichi Kasamatsu
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  2. Makoto Tsubota
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Correspondence to Kenichi Kasamatsu.

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Kasamatsu, K., Tsubota, M. Dynamical Properties of Vortices in a Bose-Einstein Condensate in a Rotating Lattice. J Low Temp Phys 148, 357–361 (2007). https://doi.org/10.1007/s10909-007-9395-9

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  • DOI: https://doi.org/10.1007/s10909-007-9395-9

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