High frequency sound in superfluid 3He-B

Simple item page
dc.creatorDavis, J. P.
dc.creatorChoi, H.
dc.creatorPollanen, J.
dc.creatorHalperin, W. P.
dc.date2008-06-05
dc.date2008-07-24
dc.date.accessioned2026-07-07T13:07:29Z
dc.date.available2026-07-07T13:07:29Z
dc.descriptionWe present measurements of the absolute phase velocity of transverse and longitudinal sound in superfluid 3He-B at low temperature, extending from the imaginary squashing mode to near pair-breaking. Changes in the transverse phase velocity near pair-breaking have been explained in terms of an order parameter collective mode that arises from f-wave pairing interactions, the so-called J=4- mode. Using these measurements, we establish lower bounds on the energy gap in the B-phase. Measurement of attenuation of longitudinal sound at low temperature and energies far above the pair-breaking threshold, are in agreement with the lower bounds set on pair-breaking. Finally, we discuss our estimations for the strength of the f-wave pairing interactions and the Fermi liquid parameter, F4s.
dc.description15 pages, 8 figures, accepted to J. Low Temp. Phys
dc.identifierhttps://arxiv.org/abs/0806.0908
dc.identifierhttp://arxiv.org/abs/0806.0908
dc.identifierJournal of Low Temperature Physics, Volume 153, Numbers 1-2 / October, 2008
dc.identifierdoi:10.1007/s10909-008-9819-1
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/228107
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleHigh frequency sound in superfluid 3He-B
dc.typetext

Files

Collections

arXiv