Nonlinear effects and spin-dynamics in ultracold quantum gases
Prof. Dr. Klaus Sengstock (Institut fuer Laserphysik, Universität Hamburg)

The talk will review a few recent developments in ultracold quantum gases. Solitons are quasi-particles and can occur in nonlinear systems, like coherent matter in a Bose-Einstein condensate (BEC). Oscillations of dark solitons in a BEC as well as their interactions and the physics of two-component solitons will be discussed.
So called spinor-BEC allow the study of magnetism in quantum gases. In this talk the spontaneous formation of regular spin waves, their creation and damping will also be presented.