This research proposes a new model predicting a distinctive bispectrum signature in future cosmic surveys, suggesting novel insights into inflation.
We propose that cosmological perturbations originate from a critical point of a discrete spacetime network described by Granular Entropic Physics (GEP). The curvature perturbation corresponds to the energy operator of a 3D Ising-like conformal field theory, leading to a distinctive prediction for the primordial bispectrum: in the squeezed limit, it scales as (k1/k2)^1.4, in contrast to the nearly flat behavior of single-field inflation. This signal is undetectable in the CMB but detectable at high significance in future 21cm surveys such as SKA.
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Štěpán Sekanina (2026) studied this question.
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