Wave turbulence in Bose-Einstein condensates

Details Wave turbulence in Bose-Einstein condensates Wave turbulence in Bose-Einstein condensates

2003-08-06

arxiv.org/abs/math-ph/0308008v1

Physics

Mathematical Physics

33 pages 2 figures

Scientific paper

The kinetics of nonequilibrium Bose-Einstein condensates are considered within the framework of the Gross-Pitaevskii equation. A systematic derivation is given for weak small-scale perturbations of a steady confined condensate state. This approach combines a wavepacket WKB description with the weak turbulence theory. The WKB theory derived in this paper describes the effect of the condensate on the short-wave excitations which appears to be different from a simple renormalization of the confining potential suggested in previous literature.

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