Ringing in de Sitter spacetime

DOI10.1016/J.NUCLPHYSB.2018.01.021zbMATH Open1381.81070arXiv1707.01030OpenAlexW2963540263WikidataQ130156017 ScholiaQ130156017MaRDI QIDQ1700060

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Publication date: 2 March 2018

Published in: (Search for Journal in Brave)

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.

Full work available at URL: https://arxiv.org/abs/1707.01030

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