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ID 56339
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Author
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
Abstract
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.
Note
This is an article published by American Physical Society
Published Date
2010-06-14
Publication Title
Physical Review A
Volume
volume81
Issue
issue6
Publisher
American Physical Society
Start Page
063623
ISSN
24699926
NCID
AA10764867
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
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DOI
Web of Sience KeyUT
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isVersionOf https://doi.org/10.1103/PhysRevA.81.063623