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Transport in very dilute solutions of He-3 in superfluid He-4
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- Baym, Gordon (author)
- Univ Illinois, Dept Phys, Urbana, IL, USA
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- Beck, D. H. (author)
- Niels Bohr Inst, Niels Bohr Int Acad, Copenhagen O, Denmark
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- Pethick, Christopher J. (author)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Nordiska institutet för teoretisk fysik (Nordita),Niels Bohr Inst, Niels Bohr Int Acad, Copenhagen , Denmark
- (creator_code:org_t)
- 2013
- 2013
- English.
- In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 88:1, s. 014512-
- Journal article (peer-reviewed)
Abstract
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Mass Diffusion-Coefficient
- Thermal-Conductivity
- Superconducting Aluminum
- Temperature
- Pressure
- Helium
- Solubility
- Density
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