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ID 56339
フルテキストURL
著者
Huhtamaki, J. A. M. Department of Physics, Okayama University
Takahashi, M. Department of Physics, Okayama University
Simula, T. P. Department of Physics, Okayama University
Mizushima, T. Department of Physics, Okayama University
Machida, K. Department of Physics, Okayama University
抄録
We have solved numerically the ground states of a Bose-Einstein condensate in the presence of dipolar interparticle forces using a semiclassical approach. Our motivation is to model, in particular, the spontaneous spin textures emerging in quantum gases with large dipole moments, such as Cr-52 or Dy condensates, or ultracold gases consisting of polar molecules. For a pancake-shaped harmonic ( optical) potential, we present the ground-state phase diagram spanned by the strength of the nonlinear coupling and dipolar interactions. In an elongated harmonic potential, we observe a helical spin texture. The textures calculated according to the semiclassical model in the absence of external polarizing fields are predominantly analogous to previously reported results for a ferromagnetic F = 1 spinor Bose-Einstein condensate, suggesting that the spin textures arising from the dipolar forces are largely independent of the value of the quantum number F or the origin of the dipolar interactions.
備考
This is an article published by American Physical Society
発行日
2010-06-14
出版物タイトル
Physical Review A
81巻
6号
出版者
American Physical Society
開始ページ
063623
ISSN
24699926
NCID
AA10764867
資料タイプ
学術雑誌論文
言語
English
OAI-PMH Set
岡山大学
論文のバージョン
publisher
DOI
Web of Sience KeyUT
関連URL
isVersionOf https://doi.org/10.1103/PhysRevA.81.063623