Heat transport and self-organized criticality in liquid 4He close to T_lambda
Condensed Matter
2007-05-23 v1
Abstract
We present a renormalization-group calculation based on model F for the thermal conductivity lambda_T(T,Q) in the presence of a homogeneous heat current Q and gravity. For temperatures below T_lambda we obtain a large but finite thermal conductivity corresponding to superfluid 4He with dissipation. Furthermore, we consider the self-organized critical state where the effects of gravity and heat current cancel each other so that the distance from criticality delta T = T(z) - T_lambda(z) is constant in space and a function of Q. We compare our theoretical results with recent experiments.
Keywords
Cite
@article{arxiv.cond-mat/9907172,
title = {Heat transport and self-organized criticality in liquid 4He close to T_lambda},
author = {Rudolf Haussmann},
journal= {arXiv preprint arXiv:cond-mat/9907172},
year = {2007}
}
Comments
10 pages, 3 figures, LATEX style file jltp.sty included