Dynamical suppression of non-adiabatic modes
Astrophysics
2008-11-26 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
Recent analyses of the WMAP 5-year data constrain possible non-adiabatic contributions to the initial conditions of CMB anisotropies. Depending upon the early dynamics of the plasma, the amplitude of the entropic modes can experience a different suppression by the time of photon decoupling. Explicit examples of the latter observation are presented both analytically and numerically when the post-inflationary dynamics is dominated by a stiff contribution.
Cite
@article{arxiv.0808.3692,
title = {Dynamical suppression of non-adiabatic modes},
author = {Massimo Giovannini},
journal= {arXiv preprint arXiv:0808.3692},
year = {2008}
}
Comments
9 pages, four figures