期刊
LASER PHYSICS LETTERS
卷 12, 期 4, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1612-2011/12/4/045501
关键词
spinor condensate; spin-orbit coupling; vector solitons
资金
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil) [2013/07213-0, 2012/00451-0]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Brazil)
We study the formation of bound states and three-component bright vector solitons in a quasi-one-dimensional spin-orbit-coupled hyperfine spin f = 1 Bose-Einstein condensate using numerical solution and variational approximation of a mean-field model. In the antiferromagnetic domain, the solutions are time-reversal symmetric, and the component densities have multi-peak structure. In the ferromagnetic domain, the solutions violate time-reversal symmetry, and the component densities have single-peak structure. The dynamics of the system are not Galelian invariant. From an analysis of Galelian invariance, we establish that the single-peak ferromagnetic vector solitons are true solitons and can move maintaining constant component densities, whereas the antiferromagnetic solitons cannot move with constant component densities.
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