Interference of a Bose-Einstein condensate in a hard-wall trap: Formation of vorticity
J. Ruostekoski, B. Kneer, W. P. Schleich
Abstract
We theoretically study the coherent expansion of a Bose-Einstein condensate in the presence of a confining impenetrable hard-wall potential. The nonlinear dynamics of the macroscopically coherent matter field results in rich and complex spatio-temporal interference patterns demonstrating the formation of vorticity and solitonlike structures, and the fragmentation of the condensate into coherently coupled pieces.
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