Heat exchanges in coarsening systems

Details Heat exchanges in coarsening systems Heat exchanges in coarsening systems

2011-11-02

arxiv.org/abs/1111.0448v1

J. Stat. Mech. (2011) P10022

Physics

Condensed Matter

Statistical Mechanics

12 pages, 8 figures

Scientific paper

This paper is a contribution to the understanding of the thermal properties of aging systems where statistically independent degrees of freedom with largely separated timescales are expected to coexist. Focusing on the prototypical case of quenched ferromagnets, where fast and slow modes can be respectively associated to fluctuations in the bulk of the coarsening domains and to their interfaces, we perform a set of numerical experiments specifically designed to compute the heat exchanges between different degrees of freedom. Our studies promote a scenario with fast modes acting as an equilibrium reservoir to which interfaces may release heat through a mechanism that allows fast and slow degrees to maintain their statistical properties independent.

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