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Trapping of two-component matter-wave solitons by mismatched optical lattices
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Shi, Z., Law, K. J. H., Kevrekidis, P.G. and Malomed, B.A. (2008) Trapping of two-component matter-wave solitons by mismatched optical lattices. Physics Letters A, Vol.372 (No.22). pp. 4021-4027. doi:10.1016/j.physleta.2008.02.088 ISSN 0375-9601.
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Official URL: http://dx.doi.org/10.1016/j.physleta.2008.02.088
Abstract
We consider a one-dimensional model of a two-component Bose–Einstein condensate in the presence of periodic external potentials of opposite signs, acting on the two species. The interaction between the species is attractive, while intra-species interactions may be attractive too [the system of the bright–bright (BB) type], or of opposite signs in the two components [the gap–bright (GB) type]. We identify the existence and stability domains for soliton complexes of the BB and GB types. The evolution of unstable solitons leads to the establishment of oscillatory states. The increase of the strength of the nonlinear attraction between the species results in symbiotic stabilization of the complexes, despite the fact that one component is centered around a local maximum of the respective periodic potential.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||
Journal or Publication Title: | Physics Letters A | ||||
Publisher: | Elsevier Science BV | ||||
ISSN: | 0375-9601 | ||||
Official Date: | 2008 | ||||
Dates: |
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Volume: | Vol.372 | ||||
Number: | No.22 | ||||
Page Range: | pp. 4021-4027 | ||||
DOI: | 10.1016/j.physleta.2008.02.088 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published |
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