Turbulence in a Bose-Einstein condensate of dipolar excitons in coupled quantum wells

被引：16
|
作者：
Berman, O. L. [1 ,2 ,3 ]
Kezerashvili, R. Ya. [1 ,2 ,3 ]
Kolmakov, G. V. [1 ]
Lozovik, Yu. E. [4 ]
机构：
[1] CUNY, New York City Coll Technol, Dept Phys, Brooklyn, NY 11201 USA
[2] CUNY, Grad Sch, New York, NY 10016 USA
[3] CUNY, Univ Ctr, New York, NY 10016 USA
[4] Inst Spect RAS, Troitsk 142190, Moscow Region, Russia
来源：
PHYSICAL REVIEW B | 2012年 / 86卷 / 04期
关键词：
POTENTIAL TRAPS; SYSTEM; SUPERFLUIDITY;
D O I：
10.1103/PhysRevB.86.045108
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The nonlinear dynamics of a Bose-Einstein condensate (BEC) of dipolar excitons trapped in an external confining potential in coupled quantum wells is analyzed. It is demonstrated that under typical experimental conditions the dipolar exciton BEC can be described by a generalized Gross-Pitaevskii equation with the local interaction between the excitons, which depends on the exciton distribution function. It is shown that, if the system is pumped at sufficiently high frequencies, a steady turbulent state can be formed.
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页数：5
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