Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1998-06-10
Europhys. Lett. 43, pp. 271-276 (1998)
Physics
Condensed Matter
Statistical Mechanics
5 pages, 3 figures, to appear in Europhysics Letters
Scientific paper
10.1209/epl/i1998-00352-3
The divergence of the thermal conductivity in the thermodynamic limit is thoroughly investigated. The divergence law is consistently determined with two different numerical approaches based on equilibrium and non-equilibrium simulations. A possible explanation in the framework of linear-response theory is also presented, which traces back the physical origin of this anomaly to the slow diffusion of the energy of long-wavelength Fourier modes. Finally, the results of dynamical simulations are compared with the predictions of mode-coupling theory.
Lepri Stefano
Livi Roberto
Politi Antonio
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