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Prof. Michele Modugno

Fondazione Basca per la Scienza, Dipartimento di Fisica Teorica e Storia della Scienza dell'Università dei Paesi Baschi di Bilbao (Spain)

Wednesday, April 10th, 2013 at 11:30:00 AM  

Aula Magna, Physics and Astronomy Dept., University of Florence

Published on-line at 12:54:47 PM on Friday, March 15th, 2013

Tight binding models for ultracold atoms in optical lattices

Construction of tight-binding models for ultracold atoms in optical lattices.

I will discuss how to construct tight-binding models for ultracold atoms in optical lattices, by means of the maximally localized Wannier functions for composite bands. Specific examples will be given for the case graphene-like potentials with two degenerate minima per unit cell, where a tight-binding model with up to third-nearest neighbors is capable to reproduce the structure of the Dirac points in a range of typical experimental parameters (see the recent experiment by Tarruell et al..

I will also briefly review other recent results, including anomalous Bloch oscillations, shortcuts to adiabaticity, and quantum backflow.

For further informations, please contact Dr. Chiara Fort.