Thermal effects in Ising Cosmology
High Energy Physics - Theory
2023-10-10 v3 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
We consider a real scalar field in de Sitter background and compute its thermal propagators. We propose that in a dS/CFT context, non-trivial thermal effects as seen by an 'out' observer can be encoded in the anomalous dimensions of the Ising model. One of these anomalous dimensions, the critical exponent , fixes completely a number of cosmological observables, which we compute
Cite
@article{arxiv.2209.09938,
title = {Thermal effects in Ising Cosmology},
author = {Nikos Irges and Antonis Kalogirou and Fotis Koutroulis},
journal= {arXiv preprint arXiv:2209.09938},
year = {2023}
}
Comments
15 pages, 2 figures, version accepted for publication, clarifications regarding the thermal propagator added, general presentation improved, references added, typos corrected