info:eu-repo/semantics/article
Probing quantum transport by engineering correlations in a speckle potential
Fecha
2014-02Registro en:
Alamir, Ardavan; Capuzzi, Pablo; Kashanian, Samir Vartabi; Vignolo, Patrizia; Probing quantum transport by engineering correlations in a speckle potential; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 89; 2; 2-2014; 23613-236137
1050-2947
CONICET Digital
CONICET
Autor
Alamir, Ardavan
Capuzzi, Pablo
Kashanian, Samir Vartabi
Vignolo, Patrizia
Resumen
We develop a procedure to modify the correlations of a speckle potential. This procedure, that is suitable for spatial light modulator devices, allows one to increase the localization efficiency of the speckle in a narrow energy region whose position can be easily tuned. This peculiar energy-dependent localization behavior is explored by pulling the potential through a cigar-shaped Bose-Einstein condensate. We show that the percentage of dragged atoms as a function of the pulling velocity depends on the potential correlations below a threshold of the disorder strength. Above this threshold, interference effects are no longer clearly observable during the condensate drag. © 2014 American Physical Society.