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Mean-field model for the interference of matter waves from a three-dimensional optical trap | | Sadhan K. Adhikari
; Paulsamy Muruganandam
; | | Date: |
18 Sep 2002 | | Journal: | Phys. Lett. A. 310 (2003) 229-235 | | Subject: | Soft Condensed Matter; Pattern Formation and Solitons | cond-mat.soft nlin.PS | | Abstract: | Using the mean-field time-dependent Gross-Pitaevskii equation we study the formation of a repulsive Bose-Einstein condensate on a combined optical and harmonic traps in two and three dimensions and subsequent generation of the interference pattern upon the removal of the combined traps as in the experiment by Greiner {it et al.} [Nature (London) {f 415}, 39 (2002)]. For optical traps of moderate strength, interference pattern of 27 (9) prominent bright spots is found to be formed in three (two) dimensions on a cubic (square) lattice in agreement with experiment. Similar interference pattern can also be formed upon removal of the optical lattice trap only. The pattern so formed can oscillate for a long time in the harmonic trap which can be observed experimentally. | | Source: | arXiv, cond-mat/0209429 | | Services: | Forum | Review | PDF | Favorites | |
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