English

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.

Keywords

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

R2 v1 2026-06-22T20:37:40.238Z