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arXiv · 0801.0408

Some thermal transport properties of the FPU model with quadratic pinning

Kenichiro Aoki
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Abstract

Thermal transport properties of the FPU $β$ model with a quadratic pinning term are investigated for various couplings and temperatures. In particular, the size dependence of the thermal conductivity, $κ\propto L^α$, is studied. $α$ agrees with that of the FPU $β$ model (with no pinning) at high temperatures but decreases at low temperatures. This crossover behavior occurs at a temperature depending on the strength of the quadratic pinning.

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Kenichiro Aoki. 2008-01-02. Some thermal transport properties of the FPU model with quadratic pinning. https://doi.org/10.1143/ptp.119.717

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