Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2004-08-12
Physics
Condensed Matter
Other Condensed Matter
8 pages, 9 figures; modified references in Section 2; minor content changes in Sections 1 and 2 and Fig. 9 caption
Scientific paper
10.1103/PhysRevA.71.023612
We present a numerical study of dispersion manipulation and formation of matter-wave gap solitons in a Bose-Einstein condensate trapped in an optical superlattice. We demonstrate a method for controlled generation of matter-wave gap solitons in a stationary lattice by using an interference pattern of two condensate wavepackets, which mimics the structure of the gap soliton near the edge of a spectral band. The efficiency of this method is compared with that of gap soliton generation in a moving lattice recently demonstrated experimentally by Eiermann et al. [Phys. Rev. Lett. 92, 230401 (2004)]. We show that, by changing the relative depths of the superlattice wells, one can fine-tune the effective dispersion of the matter waves at the edges of the mini-gaps of the superlattice Bloch-wave spectrum and therefore effectively control both the peak density and the spatial width of the emerging gap solitons.
Kivshar Yuri S.
Louis Pearl J. Y.
Ostrovskaya Elena A.
No associations
LandOfFree
Dispersion control for matter waves and gap solitons in optical superlattices does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dispersion control for matter waves and gap solitons in optical superlattices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispersion control for matter waves and gap solitons in optical superlattices will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-574830