https://doi.org/10.1140/epjc/s10052-023-11622-8
Letter
Ising Cosmology
1
Department of Physics, School of Applied Mathematical and Physical Sciences, National Technical University of Athens, Zografou Campus, 15780, Athens, Greece
2
Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093, Warsaw, Poland
Received:
9
December
2022
Accepted:
14
May
2023
Published online:
23
May
2023
Using arguments from holography we propose that the deviation of the cosmological spectral index of scalar fluctuations from unity may be controlled almost entirely by the critical exponent
of the
Ising model.
© The Author(s) 2023
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