Work

Thermodynamic Blocking in Self-Gravitating Systems

Year: 2025

Type: article

Abstract: Building upon a thermodynamic formalism, we show that one-dimensional self-gravitating systems in hydrostatic equilibrium with a uniform density are in maximal entropy states when submitted to adiabatic perturbations, i.e., perturbations that maintain the hydrostatic equilibrium. We also show that the same result holds for three-dimensional spherical systems when submitted to spherically symmetric adiabatic perturbations. We coin this phenomenon “thermodynamic blocking”, given its similarity to the more general “kinetic blocking”. This result underlines the importance of the thermodynamic formalism, which proves useful when kinetic equations break down.

Source: Universe

DOI: 10.3390/universe11120419

Authors: Barnabás Deme, Jean-Baptiste Fouvry

Institutions: Eötvös Loránd University, University of Szeged, Institut d'Astrophysique de Paris

Language: English

Topic: Statistical Mechanics and Entropy

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,930

Funder: Agence Nationale de la Recherche