Abstract
We have measured directly the Andreev scattering of a controllable beam of quasiparticle excitations by a localized tangle of quantum vortices in superfluid {sup 3}He-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 {mu}K we reach the low temperature limit for turbulent dynamics.
Bradley, D I;
Fisher, S N;
Guenault, A M;
Lowe, M R;
Pickett, G R;
Rahm, A;
Whitehead, R C.V.
[1]
- Department of Physics, Lancaster University, Lancaster LA1 4YB (United Kingdom)
Citation Formats
Bradley, D I, Fisher, S N, Guenault, A M, Lowe, M R, Pickett, G R, Rahm, A, and Whitehead, R C.V.
Quantum turbulence in superfluid {sup 3}He illuminated by a beam of quasiparticle excitations.
United States: N. p.,
2004.
Web.
doi:10.1103/PhysRevLett.93.235302.
Bradley, D I, Fisher, S N, Guenault, A M, Lowe, M R, Pickett, G R, Rahm, A, & Whitehead, R C.V.
Quantum turbulence in superfluid {sup 3}He illuminated by a beam of quasiparticle excitations.
United States.
https://doi.org/10.1103/PhysRevLett.93.235302
Bradley, D I, Fisher, S N, Guenault, A M, Lowe, M R, Pickett, G R, Rahm, A, and Whitehead, R C.V.
2004.
"Quantum turbulence in superfluid {sup 3}He illuminated by a beam of quasiparticle excitations."
United States.
https://doi.org/10.1103/PhysRevLett.93.235302.
@misc{etde_20621542,
title = {Quantum turbulence in superfluid {sup 3}He illuminated by a beam of quasiparticle excitations}
author = {Bradley, D I, Fisher, S N, Guenault, A M, Lowe, M R, Pickett, G R, Rahm, A, and Whitehead, R C.V.}
abstractNote = {We have measured directly the Andreev scattering of a controllable beam of quasiparticle excitations by a localized tangle of quantum vortices in superfluid {sup 3}He-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 {mu}K we reach the low temperature limit for turbulent dynamics.}
doi = {10.1103/PhysRevLett.93.235302}
journal = []
issue = {23}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Dec}
}
title = {Quantum turbulence in superfluid {sup 3}He illuminated by a beam of quasiparticle excitations}
author = {Bradley, D I, Fisher, S N, Guenault, A M, Lowe, M R, Pickett, G R, Rahm, A, and Whitehead, R C.V.}
abstractNote = {We have measured directly the Andreev scattering of a controllable beam of quasiparticle excitations by a localized tangle of quantum vortices in superfluid {sup 3}He-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 {mu}K we reach the low temperature limit for turbulent dynamics.}
doi = {10.1103/PhysRevLett.93.235302}
journal = []
issue = {23}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Dec}
}