Information theory and heat transport in relativistic gases

D. Jou, M. Zakari

Research output: Contribution to journalArticleResearchpeer-review

9 Citations (Scopus)


We study the behaviour of the thermal conductivity for an ideal ultra-relativistic gas far from equilibrium by using information theory and the fluctuation-dissipation theorem in nonequilibrium steady states. We compare two different proposals for the nonlinear generalization of the fluctuation- dissipation theorem to the far-from-equilibrium regime. Both proposals lead to a saturation of the heat flux for high temperature gradients, but one of them is in better agreement with the expressions most often used in radiation hydrodynamics.
Original languageEnglish
Article number013
Pages (from-to)1585-1592
JournalJournal of Physics A: Mathematical and General
Publication statusPublished - 1 Dec 1995


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