Thermodynamical properties of metric fluctuations during inflation
General Relativity and Quantum Cosmology
2015-06-25 v2
Abstract
I study a thermodynamical approach to scalar metric perturbations during the inflationary stage. In the power-law expanding universe here studied, I find a negative heat capacity as a manifestation of superexponential growing for the number of states in super Hubble scales. The power spectrum depends on the Gibbons-Hawking and Hagedorn temperatures.
Keywords
Cite
@article{arxiv.gr-qc/0110123,
title = {Thermodynamical properties of metric fluctuations during inflation},
author = {Mauricio Bellini},
journal= {arXiv preprint arXiv:gr-qc/0110123},
year = {2015}
}
Comments
7 pages, no figures (accepted to publication in General Relativity and Gravitation)