Bright solitary waves in a Bose-Einstein condensate and their interactions

Details Bright solitary waves in a Bose-Einstein condensate and their interactions Bright solitary waves in a Bose-Einstein condensate and their interactions

2008-01-15

arxiv.org/abs/0801.2364v1

Phys. Rev. A 78 (2008) 033610

Physics

Condensed Matter

Other Condensed Matter

6 pages, 14 figures

Scientific paper

We examine the dynamics of two bright solitary waves with a negative nonlinear term. The observed repulsion between two solitary waves -- when these are in an antisymmetric combination -- is attributed to conservation laws. Slight breaking of parity, in combination with weak relaxation of energy, leads the two solitary waves to merge. The effective repulsion between solitary waves requires certain nearly ideal conditions and is thus fragile.

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