Gauge-invariant Boltzmann equation and the fluid limit

2007/06/30 by Cyril Pitrou · 5 citations
Engineering · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Cosmology and Gravitation Theories #Fluid Dynamics and Turbulent Flows #astro-ph #gr-qc

paper · pdf · doi:10.1088/0264-9381/24/24/001

published as Class.Quant.Grav.24:6127-6158,2007 · 36 pages

openalex publication_date 2007/11/27 · arxiv created 2008/05/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

This paper investigates the collisionless Boltzmann equation up to second order in the cosmological perturbations. It describes the gauge dependence of the distribution function and the construction of a gauge-invariant distribution function and brightness, and then derives the gauge-invariant fluid limit.

Citations

• Distribution functions in physics: Fundamentals
• Non-Gaussian features of primordial fluctuations in single field inflationary models
• Non-Gaussianity from Inflation: Theory and Observations
• Multipole expansions of gravitational radiation

Cited by

• On the non-Gaussianity from recombination
• More on crinkles in the last scattering surface
• The intrinsic B-mode polarisation of the Cosmic Microwave Background
• Crinkles in the last scattering surface: Non-Gaussianity from inhomogeneous recombination
• The cosmic microwave background bispectrum from the non-linear evolution of the cosmological perturbations

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