Macroscopic violation of the law of heat conduction.

Cândido, Michael M; Morgado, Welles A M; Duarte Queirós, Sílvio M · Phys Rev E · 2017

basic_science · Level V

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Abstract

We analyze a model describing an anharmonic macroscopic chain in contact with general reservoirs that follow the Lévy-Itô theorem on the Gaussian-Poissonian decomposition of the measure. We do so by considering a perturbative approach to compute the heat flux and the (canonical) temperature profile when the system reaches the steady state. This approach allows observing a macroscopic violation of the law of the heat conduction equivalent to that found for small (N=2) systems in contact with general reservoirs, which conveys the ascendency of the nature of the reservoirs over the size of the system.