Lattice solitons in quasicondensates

Details Lattice solitons in quasicondensates Lattice solitons in quasicondensates

2004-10-13

arxiv.org/abs/cond-mat/0410323v2

Phys. Rev. Lett. 94, 130403 (2005)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.94.130403

We analyze finite temperature effects in the generation of bright solitons in condensates in optical lattices. We show that even in the presence of strong phase fluctuations solitonic structures with well defined phase profile can be created. We propose a novel family of variational functions which describe well the properties of these solitons and account for the non-linear effects in the band structure. We discuss also the mobility and collisions of these localized wave packets.

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