Volume 76, Number 1, October 2006
|Page(s)||42 - 48|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||30 August 2006|
Heat conductivity in the presence of a quantized degree of freedom
Zhejiang Institute of Modern Physics, Zhejiang University - Zhejiang 310027, PRC
2 Department of Physics, Huzhou Teachers College - Zhejiang 313000, PRC
Corresponding author: firstname.lastname@example.org
Accepted: 10 August 2006
We propose a model with a quantized degree of freedom to study the heat transport in quasi–one-dimensional systems. Our simulations reveal three distinct temperature regimes. In particular, the intermediate regime is characterized by heat conductivity with a temperature exponent γ much greater than 1/2 that was generally found in systems with point-like particles. A dynamical investigation indicates the occurrence of non-equipartition behavior in this regime. Moreover, the corresponding Poincaré section also shows remarkably characteristic patterns, completely different from the cases of point-like particles.
PACS: 44.10.+i – Heat conduction / 05.45.-a – Nonlinear dynamics and chaos / 05.70.Ln – Nonequilibrium and irreversible thermodynamics
© EDP Sciences, 2006
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