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Relativistic theories of interacting fields and fluids

Esteban Calzetta·Marc Thibeault
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Abstract

We investigate divergence-type theories (DTT) describing the dissipative interaction between a field and a fluid. We look for theories which, under equilibrium conditions, reduce to the theory of a Klein-Gordon scalar field and a perfect fluid. We show that the requirements of causality and positivity of entropy production put non-trivial constarints to the structure of the interaction terms. These theories provide a basis for the phenomonological study of the reheating period.

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Esteban Calzetta, Marc Thibeault. 2001-03-19. Relativistic theories of interacting fields and fluids. https://doi.org/10.1103/physrevd.63.103507

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