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 - Direct observation of the Andreev reflection of a quasiparticle beam by quantum turbulence in 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.
N1 - Describes the first direct imaging of a quantum turbulent tangle by the Andreev reflection of a beam of quasiparticle excitations, a novel technique leading to further discoveries in quantum fluids research (see above). Bradley devised and supervised all aspects of this experiment. RAE_import_type : Journal article RAE_uoa_type : Physics
PY - 2003/5
Y1 - 2003/5
N2 - A beam of quasiparticles from a black-body radiator is directed at a localized region of quantum turbulence generated by a vibrating wire resonator driven at super-critical velocity. We are able to measure directly the fraction of the incident quasiparticle beam which is retro-reflected from the turbulence by Andreev processes. Combining these measurements with previous measurements on the spatial extent of the turbulence may allow us to infer the vortex line density.
AB - A beam of quasiparticles from a black-body radiator is directed at a localized region of quantum turbulence generated by a vibrating wire resonator driven at super-critical velocity. We are able to measure directly the fraction of the incident quasiparticle beam which is retro-reflected from the turbulence by Andreev processes. Combining these measurements with previous measurements on the spatial extent of the turbulence may allow us to infer the vortex line density.
KW - vorticity
KW - superfluid He3
KW - vortex line density
KW - quantum turbulence
U2 - 10.1016/S0921-4526(02)01882-3
DO - 10.1016/S0921-4526(02)01882-3
M3 - Journal article
VL - 329
SP - 64
EP - 65
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 1
ER -