Quantum turbulence in superfluid 3He illuminated by a beam of quasiparticle excitations -: art. no. 235302

被引：51

作者：

Bradley, DI ^{[1
]}

Fisher, SN ^{[1
]}

Guénault, AM ^{[1
]}

Lowe, MR ^{[1
]}

Pickett, GR ^{[1
]}

Rahm, A ^{[1
]}

Whitehead, RCV ^{[1
]}

机构：

[1] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 23期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.93.235302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured directly the Andreev scattering of a controllable beam of quasiparticle excitations by a localized tangle of quantum vortices in superfluid He-3-B at low temperatures. We present a microscopic description of the Andreev scattering from a vortex line allowing us to estimate the vortex separation scale in a dilute tangle of vortices, providing a better comparison of the observed decay time of the turbulence with recent numerical simulations. The experiments also suggest that below 200 muK we reach the low temperature limit for turbulent dynamics.

引用

页数：4

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