Interaction of matter-wave gap solitons in optical lattices

Beata J. Da̧browska, Elena A. Ostrovskaya, Yuri S. Kivshar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

We study the mobility and interaction of gap solitons in a Bose-Einstein condensate (BEC) confined by an optical lattice potential. Such localized wavepackets can exist only in the gaps of the matter-wave band-gap spectrum and their interaction properties are shown to serve as a measure of the discreteness imposed on a BEC by the lattice potential. We show that inelastic collisions of two weakly localized near-band-edge gap solitons provide a simple and effective means for generating strongly localized in-gap solitons through soliton fusion.

Original languageEnglish
Pages (from-to)423-427
Number of pages5
JournalJournal of Optics B: Quantum and Semiclassical Optics
Volume6
Issue number10
DOIs
Publication statusPublished - Oct 2004
Externally publishedYes

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