Generation and Detection of Quantum Turbulence in Superfluid
- 8 January 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 86 (2), 244-247
- https://doi.org/10.1103/physrevlett.86.244
Abstract
We describe the first direct observations of turbulence in superfluid . 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.
Keywords
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