Backreaction effects of dissipation in neutrino decoupling

Roy Maartens*, Josep Triginer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Dissipative effects during neutrino decoupling in the early universe create a small backreaction on the Hubble rate, and lead to a small rise in temperature and entropy. We use a simplified thermo-hydrodynamic model, which provides a causal approximation to kinetic theory, in order to estimate the backreaction effects and the entropy production.

Original languageEnglish
Pages (from-to)1711-1725
JournalGeneral Relativity and Gravitation
Volume32
Issue number9
DOIs
Publication statusPublished - Sep 2000

Keywords

  • Cosmology
  • Relativistic thermodynamics

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