Instanton interaction in de Sitter spacetime
High Energy Physics - Theory
2018-11-30 v3
Abstract
Because of the presence of a cosmological horizon the dilute instanton gas approximation used for the derivation of the Coleman-De Luccia tunneling rate in de Sitter spacetime receives additional contributions due to the finite instanton separation. Here I calculate the first corrections to the vacuum decay rate that arise from this effect and depend on the parameters of the theory and the cosmological constant of the background spacetime.
Keywords
Cite
@article{arxiv.1302.2232,
title = {Instanton interaction in de Sitter spacetime},
author = {Dimitrios Metaxas},
journal= {arXiv preprint arXiv:1302.2232},
year = {2018}
}
Comments
15 pages, minor corrections