Effect of quantum fluctuations on bose-einstein condensation of bilayer atomic gases in rapid rotation

Y. Terakawa*, N. Yokoshi, K. Kamide, D. Yamamoto, S. Kurihara

*この研究の対応する著者

研究成果: Article査読

抄録

We investigate vortex states and quantum fluctuations of bilayer atomic gases in rapid rotation. Among mean-field solutions of the Gross-Pitaevskii equation, we consider two types of vortex configurations: the vortex core positions of the layers are coincident or staggered. It is found that the coincident type is energetically preferred in the practical parameter regime. We also calculate the dispersion relations of collective modes and the filling factor for bosons outside the condensates. In the double layer system, quantum depletion is found to be suppressed due to interlayer tunneling. This means that Bose-Einstein condensation is stabilized compared to the single layer case.

本文言語English
ページ(範囲)641-647
ページ数7
ジャーナルLaser Physics
18
5
DOI
出版ステータスPublished - 2008 5

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 物理学および天文学(その他)

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