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Ratchet-induced matter-wave transport and soliton collisions in Bose-Einstein condensates

Poletti, Dario; Ostrovskaya, Elena; Alexander, Tristram J; Li, Baowen; Kivshar, Yuri


We study the dynamics of bright matter-wave solitons in a Bose-Einstein condensate with negative scattering length under the influence of a time-periodic ratchet potential. The potential is formed by a one-dimensional bichromatic optical lattice which flashes on and off so that the time average of its amplitude vanishes. Due to the broken space and time-reversal symmetries of the potential, the soliton is transported with a nonzero average velocity. By employing the non-dissipative mean-field...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Physica D
DOI: 10.1016/j.physd.2008.10.003


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