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Dr. Rosario Paredes

Instituto de Fisica, Universidad Nacional Autonoma de Mexico

Monday, July 22nd, 2013 at 10:00:00 AM  

Conference room Querzoli - LENS - via Nello Carrara 1 - Sesto Fiorentino (Florence)

Published on-line at 12:24:09 PM on Thursday, July 4th, 2013

Non-equilibrium BEC in an optical lattice: interplay of disorder and interactions

Stationary and dynamical properties within the decoupling approximation and the one-level band scheme.

The interplay of interactions and dynamical structural disorder in a BEC confined in an optical lattice is studied. The atoms can move in an array of optical Josephson junctions that can be varied in time in the form of Landau-Zener sweeps. In addition, the particles are subject to an inhomogeneous harmonic field.

We study stationary and dynamical properties within the decoupling approximation and the one-level band scheme. A dynamical phase diagram summarizes the final situation across ground state and inverse sweeps is given in terms of the effect of disorder, interaction, and the speed of the sweeps.

For further informations, please contact Dr. Jorge Seman.