Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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

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