Generation and detection of quantum turbulence in Superfluid 3He-B

被引:116
作者
Fisher, SN [1 ]
Hale, AJ [1 ]
Guénault, AM [1 ]
Pickett, GR [1 ]
机构
[1] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England
关键词
D O I
10.1103/PhysRevLett.86.244
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We describe the first direct observations of turbulence in super-fluid He-3-B. The turbulence is generated by a vibrating-wire resonator driven at velocities exceeding the pair-breaking critical velocity. It is detected by the resulting decrease in the thermal damping on a neighboring "detector" vibrating-wire resonator. The superfluid flow field associated with the turbulence Andreev reflects thermal quasiparticle excitations, effectively screening the detector wire, resulting in a decrease in the thermal damping.
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页码:244 / 247
页数:4
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