Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-03-17
The European Physical Journal B, Vol 68, page 467-477 (2009)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
12 pages, 15 figures, EPJB style, accepted for publication in the topical issue of EPJB on "Novel Quantum phases and Mesoscopi
Scientific paper
10.1140/epjb/e2009-00124-5
We present a detailed numerical study of the dynamics of a disordered one-dimensional Bose-Einstein condensates in position and momentum space. We particularly focus on the region where non-linearity and disorder simultaneously effect the time propagation of the condensate as well as the possible interference between various parts of the matter wave. We report oscillation between spatially extended and localized behavior for the propagating condensate which dies down with increasing non-linearity. We also report intriguing behavior of the phase fluctuation and the coherence properties of the matter wave. We also briefly compare these behavior with that of a two-dimensional condensate. We mention the relevance of our results to the related experiments on Anderson localization and indicate the possibility of future experiments
Ghosh Sankalpa
Joshi Chaitanya
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