Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.79.013626
Title: Symmetry breaking and self-trapping of a dipolar Bose-Einstein condensate in a double-well potential
Authors: Xiong, B. 
Gong, J. 
Pu, H.
Bao, W. 
Li, B. 
Issue Date: 5-Jan-2009
Source: Xiong, B., Gong, J., Pu, H., Bao, W., Li, B. (2009-01-05). Symmetry breaking and self-trapping of a dipolar Bose-Einstein condensate in a double-well potential. Physical Review A - Atomic, Molecular, and Optical Physics 79 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.79.013626
Abstract: The quantum self-trapping phenomenon of a Bose-Einstein condensate (BEC) represents a remarkable nonlinear effect of wide interest. By considering a purely dipolar BEC in a double-well potential, we study how the dipole orientation affects the ground-state structure and the transition between self-trapping and Josephson oscillations in dynamics. Three-dimensional numerical results and an effective two-mode model demonstrate that the onset of self-trapping of a dipolar BEC can be radically modified by the dipole orientation. We also analyze the failure of the two-mode model in predicting the rate of Josephson oscillations. We hope that our results can motivate experimental work as well as future studies of self-trapping of ultracold dipolar gases in optical lattices. © 2009 The American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/53203
ISSN: 10502947
DOI: 10.1103/PhysRevA.79.013626
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