Normal heat conduction in lattice models with asymmetry harmonic interparticle interactions

Abstract

We study the thermal conduction behaviors of one-dimensional lattice models with asymmetry harmonic interparticle interactions in this paper. Normal thermal conductivity independent of the system size is observed when the lattice chains are long enough. Because only the harmonic interactions are involved, the result confirms without ambiguous interpretation that the asymmetry plays key role in resulting in the normal thermal conduction in one-dimensional momentum conserving lattices. Both equilibrium and nonequilibrium simulations are performed to support the conclusion.

4 pages,3 figures

References in corpus (5)

• Heat Transport in low-dimensional systems
• Local Temperature and Universal Heat Conduction in FPU chains
• Self-Consistent Mode-Coupling Approach to 1D Heat Transport
• Universality of One-Dimensional Heat Conductivity
• Detailed Examination of Transport Coefficients in Cubic-Plus-Quartic Oscillator Chains

Cited by in corpus (5)

• The Fourier heat conduction as a strong kinetic effect
• First-principle validation of Fourier's law in d=1,2,3 classical systems
• From Near-Integrable to Far-from-Integrable: A Unified Picture of Thermalization and Heat Transport
• Thermalization in asymmetric harmonic chains
• Phonon excitation and energy redistribution in phonon space for energy transport in one-dimensional lattice with nonlinear dispersion