Backreaction effects of dissipation in neutrino decoupling
arXiv:astro-ph/9901211 · doi:10.1023/A:1001994404420
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.
Version accepted by Gen. Rel. Grav