Loss and revival of phase coherence in a Bose–Einstein condensate moving through an optical lattice

DOI to cite this document:: 10.5283/epub.9469

Nesi, Francesco ; Modugno, Michele

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Date of publication of this fulltext: 18 Sep 2009 09:26

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Abstract

We investigate the phase coherence of a trapped Bose–Einstein condensate that undergoes a dynamical superfluid–insulator transition in the presence of a one-dimensional optical lattice. We study the evolution of the condensate after a sudden displacement of the harmonic trapping potential by solving the Gross–Pitaevskii equation, and comparing the results with the prediction of two effective 1D ...