Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2002-07-06
New J. Phys. 5 (2003) 137 (1-13)
Physics
Condensed Matter
Soft Condensed Matter
12 Revtex4 pages with 17 PS figures, Disscussion improved, References added, Evolution of three-dimensional wave function of i
Scientific paper
10.1088/1367-2630/5/1/137
Using the explicit numerical solution of the axially-symmetric Gross-Pitaevskii equation we study the dynamics of interaction among vortex solitons in a rotating matter-wave bright soliton train in a radially trapped and axially free Bose-Einstein condensate to understand certain features of the experiment by Strecker et al.[2002 Nature 417 150]. In a soliton train, solitons of opposite phase (phase delta = pi) repel and stay apart without changing shape; solitons with delta = 0 attract, interact and coalesce, but eventually come out; solitons with a general delta usually repel but interact inelastically by exchanging matter. We study and suggest future experiments with vortex solitons.
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