Wave turbulence in Bose-Einstein condensates

被引：41
|
作者：
Lvov, Y [1 ]
Nazarenko, S
West, R
机构：
[1] Rensselaer Polytech Inst, Dept Math Sci, Troy, NY 12180 USA
[2] Univ Warwick, Math Inst, Coventry CV4 7AL, W Midlands, England
来源：
PHYSICA D-NONLINEAR PHENOMENA | 2003年 / 184卷 / 1-4期
关键词：
turbulence; WKB theory; condensates;
D O I：
10.1016/S0167-2789(03)00239-2
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
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. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：333 / 351
页数：19
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