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Analytic solution of the Boltzmann equation in an expanding system

3 Pith papers cite this work. Polarity classification is still indexing.

3 Pith papers citing it
abstract

For a massless gas with constant cross section in a homogeneous, isotropically expanding spacetime we reformulate the relativistic Boltzmann equation as a set of non-linear coupled moment equations. For a particular initial condition this set can be solved exactly, yielding the first analytical solution of the Boltzmann equation for an expanding system. The non-equilibrium behavior of this relativistic gas can be mapped onto that of a homogeneous, static non-relativistic gas of Maxwell molecules.

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2026 1 2025 2

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UNVERDICTED 3

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representative citing papers

Normal mode analysis within relativistic massive transport

hep-ph · 2025-05-07 · unverdicted · novelty 7.0

Normal mode analysis of the relativistic Boltzmann equation for massive particles reveals coupling between sound and heat channels, mass-dependent critical wavenumbers, and an infinite branch cut for Landau damping.

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