Dynamics of matter-wave solitons in a ratchet potential
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Poletti, Dario; Alexander, Tristram J; Li, Baowen; Ostrovskaya, Elena; Kivshar, Yuri
Description
We study the dynamics of bright solitons formed in a Bose-Einstein condensate with attractive atomic interactions perturbed by a weak bichromatic optical lattice potential. The lattice depth is a biperiodic function of time with a zero mean, which realizes a flashing ratchet for matter-wave solitons. We find that the average velocity of a soliton and the soliton current induced by the ratchet depend on the number of atoms in the soliton. As a consequence, soliton transport can be induced...[Show more]
Collections | ANU Research Publications |
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Date published: | 2008-10-06 |
Type: | Journal article |
URI: | http://hdl.handle.net/10440/822 http://digitalcollections.anu.edu.au/handle/10440/822 |
Source: | Physical Review Letters |
DOI: | 10.1103/PhysRevLett.101.150403 |
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