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 nonequilibrium 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.
On the Anmalous Thermal conductivity in one-dimensional lattices / S. LEPRI; R. LIVI; A. POLITI. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - STAMPA. - 43:(1998), pp. 271-276.
On the Anmalous Thermal conductivity in one-dimensional lattices
LIVI, ROBERTO;
1998
Abstract
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 nonequilibrium 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.
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