Ringing in de Sitter spacetime
High Energy Physics - Theory
2017-07-05 v1
Abstract
Hydrodynamics is a universal effective theory describing relaxation of quantum field theories towards equilibrium. Massive QFTs in de Sitter spacetime are never at equilibrium. We use holographic gauge theory/gravity correspondence to describe relaxation of a QFT to its Bunch-Davies vacuum - an attractor of its late-time dynamics. Specifically, we compute the analogue of the quasinormal modes describing the relaxation of a holographic toy model QFT in de Sitter.
Cite
@article{arxiv.1707.01030,
title = {Ringing in de Sitter spacetime},
author = {Alex Buchel},
journal= {arXiv preprint arXiv:1707.01030},
year = {2017}
}
Comments
19 pages, 6 figures, 1 supplemental file