Spontaneous magnetic ordering in a ferromagnetic spinor dipolar Bose-Einstein condensate

Yuki Kawaguchi, Hiroki Saito, Kazue Kudo, Masahito Ueda

研究成果: Article査読

28 被引用数 (Scopus)

抄録

We study the spin dynamics of a spin-1 ferromagnetic Bose-Einstein condensate with magnetic dipole-dipole interaction (MDDI) based on the Gross-Pitaevskii and Bogoliubov theories. We find that various magnetic structures such as checkerboards and stripes emerge in the course of the dynamics due to the combined effects of spin-exchange interaction, MDDI, quadratic Zeeman and finite-size effects, and nonstationary initial conditions. However, the short-range magnetic order observed by the Berkeley group is not fully reproduced in our calculations; the periodicity of the order differs by a factor of 3 and the checkerboard pattern eventually dissolves in the course of time. Possible reasons for the discrepancy are discussed.

本文言語English
論文番号043627
ジャーナルPhysical Review A - Atomic, Molecular, and Optical Physics
82
4
DOI
出版ステータスPublished - 2010 10 27
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学

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