Effect of interactions on the localization of a Bose-Einstein condensate in a quasi-periodic lattice

Details Effect of interactions on the localization of a Bose-Einstein condensate in a quasi-periodic lattice Effect of interactions on the localization of a Bose-Einstein condensate in a quasi-periodic lattice

2006-11-06

arxiv.org/abs/cond-mat/0611146v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevA.75.061603

The transport properties of a Bose-Einstein condensate in a 1D incommensurate bichromatic lattice are investigated both theoretically and experimentally. We observe a blockage of the center of mass motion with low atom number, and a return of motion when the atom number is increased. Solutions of the Gross-Pitaevskii equation show how the localization due to the quasi-disorder introduced by the incommensurate bichromatic lattice is affected by the interactions.

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