Hot scalar radiation around a cosmic string setting bounds on the coupling parameter $\xi$
General Relativity and Quantum Cosmology
2017-03-27 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
In this work, by investigating the low temperature behaviour of a scalar field around a cosmic string, and assuming stable thermodynamic equilibrium, it is shown that the coupling parameter of the field with curvature must be restricted to a certain range of values whose bounds are determined by the deficit angle of the associated conical geometry.
Cite
@article{arxiv.1604.08089,
title = {Hot scalar radiation around a cosmic string setting bounds on the coupling parameter $\xi$},
author = {E. S. Moreira},
journal= {arXiv preprint arXiv:1604.08089},
year = {2017}
}
Comments
12 pages, 1 figure. The material has been expanded and the manuscript matches the published version (JHEP)