Dresden 2011 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 57: Poster 3: Quantengase, Ultrakalte Atome, Ultrakalte Moleküle, Materiewellen Optik, Präzisionsmessungen, Metrologie
Q 57.9: Poster
Thursday, March 17, 2011, 16:30–19:30, P1
Critical dynamics of ultracold bosons in one dimension — •Maximilian Schmidt1,2, Jan Schole1,2, Boris Nowak1,2, Denes Sexty1,2, and Thomas Gasenzer1,2 — 1Institut für Theoretische Physik, Ruprecht-Karls-Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, Germany
Critical dynamics in an ultracold Bose gas, in one spatial dimension, is analysed with respect to topological excitations and compared to quantum turbulence in two and three dimensions. A special focus is set on the time-evolution of characteristic quantities such as the energy and velocity distributions, soliton and vortex densities and the spectral function. The results give insight into the structure of stationary states of an ultracold Bose gas away from equilibrium.