Abstract
One-dimensional Bose gas physics is very different from two- and three-dimensional physics. 1D fluids are model systems for N-body physics, for which powerful theoretical and numerical techniques are available with, in some cases, exact solutions. The seminar was devoted to a review of recent results obtained on 1D gases of cold atoms, with the presentation of the Lieb-Lininger model, the study of the quasi-condensation transition observed from density fluctuations, the characterization of their momentum distribution and finally the study of the dynamics of these particular fluids, characterized via their structure factor.
