Oscillations in a turbulence-condensate system

被引：8

作者：

Miller, Pearson ^{[1
]}

Vladimirova, Natalia ^{[2
]}

Falkovich, Gregory ^{[3
,4
]}

机构：

[1] Yale Univ, Dept Phys, New Haven, CT 06511 USA

[2] Univ New Mexico, Dept Math & Stat, Albuquerque, NM 87131 USA

[3] Weizmann Inst Sci, IL-76100 Rehovot, Israel

[4] Inst Informat Transmiss Problems, Moscow 127994, Russia

来源：

PHYSICAL REVIEW E | 2013年 / 87卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevE.87.065202

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We consider developed turbulence in the Gross-Pitaevsky model, where a condensate appears due to an inverse cascade. Despite being fully turbulent, the system demonstrates nondecaying periodic oscillations around a steady state, when turbulence and condensate periodically exchange a small fraction of waves. We show that these collective oscillations are not of a predator-prey type, as was suggested earlier; rather, they are due to phase coherence and anomalous correlations imposed by the condensate.

引用

页数：4

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