Critical velocity of flowing supersolids of dipolar Bose gases in optical lattices

Ippei Danshita*, Daisuke Yamamoto

*この研究の対応する著者

研究成果査読

18 被引用数 (Scopus)

抄録

We study superfluidity of supersolid phases of dipolar Bose gases in two-dimensional optical lattices. We perform linear stability analyses for the corresponding dipolar Bose-Hubbard model in the hard-core boson limit to show that a supersolid can have stable superflow until the flow velocity reaches a certain critical value. The critical velocity for the supersolid is found to be significantly smaller than that for a conventional superfluid phase. We propose that the critical velocity can be used as a signature to identify the superfluidity of the supersolid phase in experiment.

本文言語English
論文番号013645
ジャーナルPhysical Review A - Atomic, Molecular, and Optical Physics
82
1
DOI
出版ステータスPublished - 2010 7 30

ASJC Scopus subject areas

  • 原子分子物理学および光学

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