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|Title:||Dynamics of matter-wave solitons in a ratchet potential||Authors:||Poletti, D.
|Issue Date:||6-Oct-2008||Citation:||Poletti, D., Alexander, T.J., Ostrovskaya, E.A., Li, B., Kivshar, Y.S. (2008-10-06). Dynamics of matter-wave solitons in a ratchet potential. Physical Review Letters 101 (15) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.101.150403||Abstract:||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 through scattering of different solitons. In the regime when matter-wave solitons are narrow compared to the lattice period the dynamics is well described by the effective Hamiltonian theory. © 2008 The American Physical Society.||Source Title:||Physical Review Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/96279||ISSN:||00319007||DOI:||10.1103/PhysRevLett.101.150403|
|Appears in Collections:||Staff Publications|
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