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Demonstrates cosmological evolution as dissipative scalar interactions, indicating solutions to current cosmological tensions.
We present GAC-Phase-Cosmology (GACPC) v4.2.5, a phenomenological Effective Field Theory (EFT) framework describing cosmological evolution as a dissipative interaction between multiple coupled scalar sectors. The model introduces a layered dynamical medium composed of three interacting fields (ϕ, χ, h) representing a primordial wavefront, a dissipative medium sector, and the Higgs-related structural sector. Primordial Resonance Damping (PRD) emerges naturally through effective energy transfer between fields, producing a dynamically evolving expansion history H(z) and a non-static dark sector equation of state w(z). The framework provides a unified interpretation of several current cosmological tensions, including the Hubble tension, suppressed structure growth (S8 tension), and early galaxy formation observed by JWST.
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Andro et al. (2026) studied this question.
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