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Critical dynamics in the normal phase near the λ-transition in 3He-4He mixtures. I. Theoretical results

Critical dynamics in the normal phase near the λ-transition in 3He-4He mixtures. I. Theoretical... We study the asymmetric model of Siggia and Nelson for the critical dynamics of 3He-4He mixtures above T λ.The static effects resulting from the singular behavior of the susceptibilities are separated from genuine dynamic effects and treated in a consistent way. The calculated expressions for the thermal conductivity, thermal diffusion ratio and mass diffusion in the normal phase serve as a basis for a subsequent quantitative comparison with experiment. We use a field theoretical non-asymptotic renormalization procedure for our calculations. General relations resulting from the structure of the dynamical model for the mixtures are derived within this theoretical formulation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Low Temperature Physics Springer Journals

Critical dynamics in the normal phase near the λ-transition in 3He-4He mixtures. I. Theoretical results

Journal of Low Temperature Physics , Volume 86 (2) – May 21, 2004

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References (26)

Publisher
Springer Journals
Copyright
Copyright
Subject
Physics; Condensed Matter Physics; Characterization and Evaluation of Materials; Magnetism, Magnetic Materials
ISSN
0022-2291
eISSN
1573-7357
DOI
10.1007/BF00121980
Publisher site
See Article on Publisher Site

Abstract

We study the asymmetric model of Siggia and Nelson for the critical dynamics of 3He-4He mixtures above T λ.The static effects resulting from the singular behavior of the susceptibilities are separated from genuine dynamic effects and treated in a consistent way. The calculated expressions for the thermal conductivity, thermal diffusion ratio and mass diffusion in the normal phase serve as a basis for a subsequent quantitative comparison with experiment. We use a field theoretical non-asymptotic renormalization procedure for our calculations. General relations resulting from the structure of the dynamical model for the mixtures are derived within this theoretical formulation.

Journal

Journal of Low Temperature PhysicsSpringer Journals

Published: May 21, 2004

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