Pressure-induced recovery of Fourier's law in one-dimensional momentum-conserving systems.
basic_science · Level V
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- Record sourced from PubMed, PMID 27575085.
- Also identified by DOI 10.1103/PhysRevE.94.012115.
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Abstract
We report the two typical models of normal heat conduction in one-dimensional momentum-conserving systems. They show the Arrhenius and the non-Arrhenius temperature dependence. We construct the two corresponding phenomenologies, transition-state theory of thermally activated dissociation and the pressure-induced crossover between two fixed points in fluctuating hydrodynamics. Compressibility yields the ballistic fixed point, whose scaling is observed in Fermi-Pasta-Ulam (FPU) β lattices.