Momentum interferences of a freely expanding Bose-Einstein condensate in 1D due to interatomic interaction change

Details Momentum interferences of a freely expanding Bose-Einstein condensate in 1D due to interatomic interaction change Momentum interferences of a freely expanding Bose-Einstein condensate in 1D due to interatomic interaction change

2006-01-19

arxiv.org/abs/cond-mat/0601437v1

Eur. Phys. J. D 40, 399 (2006)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 5 figures

Scientific paper

10.1140/epjd/e2006-00177-0

A Bose-Einstein condensate may be prepared in a highly elongated harmonic trap with negligible interatomic interactions using a Feshbach resonance. If a strong repulsive interatomic interaction is switched on and the axial trap is removed to let the condensate evolve freely in the axial direction, a time dependent quantum interference pattern takes place in the short time (Thomas-Fermi) regime, in which the number of peaks of the momentum distribution increases one by one, whereas the spatial density barely changes.

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