Nonequilibrium Phase Transitions and Pattern Formation as Consequences of Second Order Thermodynamic Induction

TL;DR

This paper introduces second order thermodynamic induction, leading to a new framework for understanding nonequilibrium phase transitions, pattern formation, and spontaneous symmetry breaking, with generalized entropy and potentials that extend traditional thermodynamics.

Contribution

It develops a second order thermodynamic induction theory that predicts nonequilibrium phase transitions and pattern formation, incorporating generalized entropy and revised thermodynamic principles.

Findings

Predicts nonequilibrium phase transitions with symmetry breaking

Formulates a generalized entropy maximized by stationary states

Consistent with observational data and modeling of pattern formation

Abstract

Development of thermodynamic induction up to second order gives a dynamical bifurcation for thermodynamic variables and allows for the prediction and detailed explanation of nonequilibrium phase transitions with associated spontaneous symmetry breaking. By taking into account nonequilibrium fluctuations, long range order is analyzed for possible pattern formation. Consolidation of results up to second order produces thermodynamic potentials that are maximized by stationary states of the system of interest. These new potentials differ from the traditional thermodynamic potentials. In particular a generalized entropy is formulated for the system of interest which becomes the traditional entropy when thermodynamic equilibrium is restored. This generalized entropy is maximized by stationary states under nonequilibrium conditions where the standard entropy for the system of interest is not maximized. These new nonequilibrium concepts are incorporated into traditional thermodynamics, such as a revised thermodynamic identity, and a revised canonical distribution. Detailed analysis shows that the second law of thermodynamics is never violated even during any pattern formation, thus solving the entropic coupling problem. Examples discussed include pattern formation during phase front propagation under nonequilibrium conditions and the formation of Turing patterns. The predictions of second order thermodynamic induction are consistent with both observational data in the literature as well as the modeling of this data.