Article
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Thermal Effects in Ising Cosmology
Version 1
: Received: 27 August 2023 / Approved: 29 August 2023 / Online: 30 August 2023 (07:22:47 CEST)
A peer-reviewed article of this Preprint also exists.
Irges, N.; Kalogirou, A.; Koutroulis, F. Thermal Effects in Ising Cosmology. Universe 2023, 9, 434. Irges, N.; Kalogirou, A.; Koutroulis, F. Thermal Effects in Ising Cosmology. Universe 2023, 9, 434.
Abstract
We consider a real scalar field in de Sitter background and compute its thermal propagators.
We propose that in a dS/CFT context, non-trivial thermal effects as seen by an `out' observer can be encoded in the anomalous dimensions of the d=3 Ising model.
One of these anomalous dimensions, the critical exponent eta, fixes completely a number of cosmological observables, which we compute.
Keywords
field theory; thermal field theory; cosmology; de Sitter space
Subject
Physical Sciences, Theoretical Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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