Bradley, D. Ian and Fisher, Shaun N. and Guénault, A.M. and Haley, Richard P. and Matthews, C. J. and Pickett, George R. and Tsepelin, Viktor and Zaki, K. (2006) Decay of quantum turbulence generated by a vibrating grid at low temperatures in superfluid He-3-B. American Institute of Physics Conference Proceedings, 850. pp. 175-176. ISSN 0094-243XFull text not available from this repository.
We describe measurements of the decay of quantum turbulence produced by a vibrating grid in superfluid He-3-B at low temperatures. Two nearby NbTi vibrating wire resonators at different distances from the grid are used to detect the turbulence via a reduction in the quasiparticle damping owing to Andreev reflection by the flow around the vortex lines. The decay time constant of this turbulence, after stopping the grid motion, is longer at the wire furthest from the grid. This suggests that either the tangle evolves and moves away from the grid once the grid motion has been stopped, or that there is a faster decay mechanism in operation close to the grid.
|Journal or Publication Title:||American Institute of Physics Conference Proceedings|
|Uncontrolled Keywords:||superfluidity ; Helium-3B ; quantum turbulence ; vibrating grid|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited By:||Dr Richard P. Haley|
|Deposited On:||26 Jan 2009 09:15|
|Last Modified:||17 Jul 2013 10:22|
Actions (login required)