Please use this identifier to cite or link to this item:
|Title:||Ratchet-induced matter-wave transport and soliton collisions in Bose-Einstein condensates|
Optical ratchet potential
|Source:||Poletti, D., Ostrovskaya, E.A., Alexander, T.J., Li, B., Kivshar, Y.S. (2009-07-15). Ratchet-induced matter-wave transport and soliton collisions in Bose-Einstein condensates. Physica D: Nonlinear Phenomena 238 (15) : 1338-1344. ScholarBank@NUS Repository. https://doi.org/10.1016/j.physd.2008.10.003|
|Abstract:||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 model for the matter waves, we study the dependence of the transport velocity on the initial state of the soliton and show how the properties of the individual localized states affect the outcome of their collisions. A useful insight into the transport properties is provided by Hamiltonian theory for the mean field, which treats the extended matter-wave excitation as an effective classical particle. © 2008 Elsevier B.V. All rights reserved.|
|Source Title:||Physica D: Nonlinear Phenomena|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 21, 2018
WEB OF SCIENCETM
checked on Jan 15, 2018
checked on Feb 18, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.