Transport in very dilute solutions of He-3 in superfluid He-4

QC 20130815
AuthorCount:3;Funding Agencies:NSF: PHY-0701611, PHY-0855569, PHY-0969790, PHY-1205671, PHY-1066292
Motivated by a proposed experimental search for the electric dipole moment of the neutron (nEDM) utilizing neutron-He-3 capture in a dilute solution of He-3 in superfluid He-4, we derive the transport properties of dilute solutions in the regime where the He-3 are classically distributed and rapid He-3-He-3 scatterings keep the He-3 in equilibrium. Our microscopic framework takes into account phonon-phonon, phonon-He-3, and He-3-He-3 scatterings. We then apply these calculations to measurements by Rosenbaum et al. [J. Low Temp. Phys. 16, 131 (1974)] and by Lamoreaux et al. [Europhys. Lett. 58, 718 (2002)] of dilute solutions in the presence of a heat flow. We find satisfactory agreement of theory with the data, serving to confirm our understanding of the microscopics of the helium in the future nEDM experiment.

Beck, D. H.Niels Bohr Inst, Niels Bohr Int Acad, Copenhagen O, Denmark (författare)
Pethick, Christopher J.Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Nordiska institutet för teoretisk fysik (Nordita),Niels Bohr Inst, Niels Bohr Int Acad, Copenhagen , Denmark(Swepub:su)pethick (författare)
Univ Illinois, Dept Phys, Urbana, IL, USANiels Bohr Inst, Niels Bohr Int Acad, Copenhagen O, Denmark (creator_code:org_t)

Ingår i:Physical Review B. Condensed Matter and Materials Physics88:1, s. 014512-1098-01211550-235X

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