Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Spatial extent of quantum turbulence in non-rotating superfluid He-3-B.
AU - Bradley, D. Ian
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Lowe, M. R.
AU - Pickett, George R.
AU - Rahm, A.
PY - 2003/5
Y1 - 2003/5
N2 - Quantum turbulence has been shown to reflect a beam of quasiparticles in the B-phase of superfluid He-3 by Andreev processes. We have investigated the evolution of the turbulence generated by a vibrating wire resonator driven at high velocities and temperatures down to -0.1T(c). The vibrating wire produces vorticity together with the expected quasiparticle beam whenever the wire velocity exceeds the critical pair breaking velocity. By using an array of detector wires we are able to investigate the development of the turbulence both in space and time. We observe that the turbulence propagates preferentially along the direction of the quasiparticle beam and drops off in a roughly exponential manner with a decay length of the order of 2 mm.
AB - Quantum turbulence has been shown to reflect a beam of quasiparticles in the B-phase of superfluid He-3 by Andreev processes. We have investigated the evolution of the turbulence generated by a vibrating wire resonator driven at high velocities and temperatures down to -0.1T(c). The vibrating wire produces vorticity together with the expected quasiparticle beam whenever the wire velocity exceeds the critical pair breaking velocity. By using an array of detector wires we are able to investigate the development of the turbulence both in space and time. We observe that the turbulence propagates preferentially along the direction of the quasiparticle beam and drops off in a roughly exponential manner with a decay length of the order of 2 mm.
KW - superfluidity
KW - vorticity
KW - quantum turbulence
KW - He-3
U2 - 10.1016/S0921-4526(02)01901-4
DO - 10.1016/S0921-4526(02)01901-4
M3 - Journal article
VL - 329
SP - 104
EP - 405
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 1
ER -