Fast frictionless dynamics as a toolbox for low-dimensional Bose-Einstein condensates
Institut für Theoretische Physik, Leibniz Universität Hannover - Appelstrasse 2, D-30167 Hannover, Germany
2 Institut für Theoretische Physik, Universität Ulm - Albert-Einstein Allee 11, D-89069 Ulm, Germany
Accepted: 28 October 2011
A method is proposed to implement a fast frictionless dynamics in a low-dimensional Bose-Einstein condensate by engineering the time dependence of the transverse confining potential in a highly anisotropic trap. The method exploits the inversion of the dynamical self-similar scaling law in the radial degrees of freedom. We discuss the application of the method to preserve short-range correlations in time-of-flight experiments, the implementation of nearly sudden quenches of non-linear interactions, and its power to assist self-similar dynamics in quasi–one-dimensional condensates.
PACS: 03.75.Kk – Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow / 67.85.-d – Ultracold gases, trapped gases / 03.75.-b – Matter waves
© EPLA, 2011