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Berlin 2005 – scientific programme

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SYSN: Solitons and Nonlinear Waves in Periodic Complex Structures

SYSN 2: SYSN II

SYSN 2.4: Invited Talk

Friday, March 4, 2005, 18:00–18:30, HU Audimax

Non-spreading wave packets of interacting matter waves: Gap-Solitons and nonlinear self trapping — •Markus Oberthaler — Kirchhoff Institut für Physik, University of Heidelberg, Im Neuenheimer Feld 227,D-69120 Heidelberg

One of the intriguing properties of nonlinear wave dynamics is the existence of stationary localized wave packets. In this talk the nonlinear wave dynamics of interacting matter waves realized with a Bose-Einstein condensate in one-dimensional periodic potentials will be discussed. In the case of weak periodic potentials Gap-solitons i.e. bright solitons for repulsive interaction, have been experimentally realized. In the deep periodic potential limit a totally different localization mechanism leads (discrete system) to non-spreading wave packets * nonlinear self trapping, which recently has been experimentally confirmed.

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