Symmetry Breaking and a Dynamical Property of a Dipolar Bose-Einstein Condensate in a Triple-Well Potential

We investigate the properties of a three-dimensional (3D) dipolar Bose-Einstein condensate (BEC) in a triple-well potential. Symmetry breaking and self-trapping (SBST) phenomena are demonstrated for 52Cr atoms in the 3D triple-well potential using numerical solutions of the Gross-Pitaevskii (GP) equ...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 2014-06, Vol.83 (6), p.1-1
Main Authors: Wang, Yuansheng, Zhou, Zhuwen, Li, Zhenyu, Liu, Gaofu
Format: Article
Language:English
Subjects:
3-D technology
Anisotropy
Atoms & subatomic particles
Bose-Einstein condensates
Broken symmetry
Contact
Dipoles
Mathematical analysis
Mathematical models
Three dimensional
Transformations
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Summary:We investigate the properties of a three-dimensional (3D) dipolar Bose-Einstein condensate (BEC) in a triple-well potential. Symmetry breaking and self-trapping (SBST) phenomena are demonstrated for 52Cr atoms in the 3D triple-well potential using numerical solutions of the Gross-Pitaevskii (GP) equation. The results show that the ground-state density distributions are affected markedly by the long-range nature and anisotropy of the dipolar interaction and the isotropic s-wave contact interaction. In addition, the dynamical picture of the SBST induced by a gradual transformation of the single-well potential into a triple-well one is also illustrated. SBST phenomena are also presented by adjusting the height of the middle potential well when the dipole orientation is aligned in the dipole axis.
ISSN:0031-9015
1347-4073