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Entropy 2017, 19(1), 8; doi:10.3390/e19010008

Active and Purely Dissipative Nambu Systems in General Thermostatistical Settings Described by Nonlinear Partial Differential Equations Involving Generalized Entropy Measures

1
Department of Psychology, University of Connecticut, Storrs, CT 06269, USA
2
Department of Physics, University of Connecticut, Storrs, CT 06269, USA
Academic Editor: Angelo Plastino
Received: 30 October 2016 / Revised: 16 December 2016 / Accepted: 22 December 2016 / Published: 27 December 2016
View Full-Text   |   Download PDF [834 KB, uploaded 27 December 2016]   |  

Abstract

In physics, several attempts have been made to apply the concepts and tools of physics to the life sciences. In this context, a thermostatistic framework for active Nambu systems is proposed. The so-called free energy Fokker–Planck equation approach is used to describe stochastic aspects of active Nambu systems. Different thermostatistic settings are considered that are characterized by appropriately-defined entropy measures, such as the Boltzmann–Gibbs–Shannon entropy and the Tsallis entropy. In general, the free energy Fokker–Planck equations associated with these generalized entropy measures correspond to nonlinear partial differential equations. Irrespective of the entropy-related nonlinearities occurring in these nonlinear partial differential equations, it is shown that semi-analytical solutions for the stationary probability densities of the active Nambu systems can be obtained provided that the pumping mechanisms of the active systems assume the so-called canonical-dissipative form and depend explicitly only on Nambu invariants. Applications are presented both for purely-dissipative and for active systems illustrating that the proposed framework includes as a special case stochastic equilibrium systems. View Full-Text
Keywords: Nambu mechanics; generalized entropy; Tsallis entropy; nonlinear Fokker–Planck equation; linear non-equilibrium thermodynamics; active systems; canonical-dissipative approach Nambu mechanics; generalized entropy; Tsallis entropy; nonlinear Fokker–Planck equation; linear non-equilibrium thermodynamics; active systems; canonical-dissipative approach
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Frank, T.D. Active and Purely Dissipative Nambu Systems in General Thermostatistical Settings Described by Nonlinear Partial Differential Equations Involving Generalized Entropy Measures. Entropy 2017, 19, 8.

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