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Wave turbulence in Bose–Einstein condensates

✍ Scribed by Yuri Lvov; Sergey Nazarenko; Robert West

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
186 KB
Volume
184
Category
Article
ISSN
0167-2789

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✦ Synopsis

The kinetics of nonequilibrium Bose-Einstein condensates (BEC) are considered within the framework of the Gross-Pitaevskii (GP) 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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