Thermostatistics of a damped bimodal particle

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
João R Medeiros, Sílvio M Duarte Queirós

Abstract

We study the thermostatistics of a damped bimodal particle, i.e., a particle of mass m subject to a work reservoir that is analytically represented by the telegraph noise. Because of the colored nature of the noise, it does not fit the Lévy-Itô class of stochastic processes, making this system an instance of a nonequilibrium system in contact with a non-Gaussian external reservoir. We obtain the statistical description of the position and velocity, namely in the stationary state, as well as the (time-dependent) statistics of the energy fluxes in the system considering no constraints on the telegraph noise features. With that result we are able to give an account of the statistical properties of the large deviations of the injected and dissipated power that can change from sub-Gaussianity to super-Gaussianity depending on the color of the noise. By properly defining an effective temperature for this system, T, we are capable of obtaining an equivalent entropy production-exchange rate equal to the ratio between the dissipation of the medium, γ, and the mass of the particle, m, a relation that concurs with the case of a standard thermal reservoir at temperature, T=T.

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Sep 13, 2014·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Welles A M Morgado, Sílvio M Duarte Queirós
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Citations

Feb 13, 2016·Physical Review. E·Welles A M Morgado, Sílvio M Duarte Queirós
Nov 15, 2016·Physical Review. E·Sílvio M Duarte Queirós
Jan 20, 2018·Physical Review. E·Michael M CândidoSílvio M Duarte Queirós

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