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arXiv · 2209.09938

Thermal effects in Ising Cosmology

Nikos Irges·Antonis Kalogirou·Fotis Koutroulis
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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 $η$, fixes completely a number of cosmological observables, which we compute

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Nikos Irges, Antonis Kalogirou, Fotis Koutroulis. 2023-09-27. Thermal effects in Ising Cosmology. https://doi.org/10.3390/universe9100434

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