The dynamics of three coupled dipolar Bose–Einstein condensates

doi:10.1088/1674-1056/22/12/120304

Abstract The dynamics of the three coupled dipolar Bose–Einstein condensates containing N bosons is investigated within a mean-field semiclassical picture based on the coherent-state method. Varieties of periodic solutions (configured as vortex, single depleted well, and dimerlike states) are obtained analytically when the fixed points are identified on the N=constant. The system dynamics are studied via numeric integration of trimer motion equations, thus revealing macroscopic effects of population inversion and self-trapping with different initial states. In particular, the trajectory of the oscillations of the populations in each well shows how the dynamics of the condensates are effected by the presence of dipole–dipole interaction and gauge field.

Keywords: Bose– Einstein condensate triple-well dipole– dipole interaction dynamics

Received: 15 April 2013
Revised: 09 May 2013
Accepted manuscript online:

PACS:	03.75.Kk	(Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow)
	03.75.Lm	(Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)
	03.65.Sq	(Semiclassical theories and applications)

Fund: Project supported by the National Key Basic Research Special Foundation of China (Grant Nos. 2011CB921502, 2012CB821305, 2009CB930701, and 2010CB922904), the National Natural Science Foundation of China (Grant Nos. 10934010, 11228409, and 61227902), and the National Natural Science Foundation of China–The Research Grants Council (Grant Nos. 11061160490 and 1386-N-HKU748/10).

Corresponding Authors: Wu Jian-Hua
E-mail: wjh@iphy.ac.cn

Cite this article:

Wu Jian-Hua (武建华), Xu Sheng-Nan (许胜男) The dynamics of three coupled dipolar Bose–Einstein condensates 2013 Chin. Phys. B 22 120304

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The dynamics of three coupled dipolar Bose–Einstein condensates

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