What question did this study set out to answer?

The research aims to introduce the ψ-Bell architecture as an extension of late-time cosmology to explain observed growth suppression.

February 21, 2026Open Access

ψ-Bell: A Structural Transition Theory for the Late-Time Universe

Key Points

The research aims to introduce the ψ-Bell architecture as an extension of late-time cosmology to explain observed growth suppression.
Developed the ψ-Bell architecture as a structural extension of existing cosmological theories.
Analyzed a transition to a retentive regime with specific characteristics like stationary difference field and equilibrium curvature.
Utilized variational reduction to derive an infrared fixed point and structural boundary parameters.
Identified an infrared fixed point γ* approximately equal to 0.639.
Established a structural boundary near a redshift of z† approximately equal to 1.7.
Provided a framework that could serve as a complementary perspective to the ΛCDM model.

Abstract

This work develops the ψ-Bell architecture—a minimal structural extension of late-time cosmology in which the observed scale-independent growth suppression (γ ≈ 0.64) arises from a transition to a retentive regime characterised by a stationary difference field Δψ, a stabilising node Ξ, and an equilibrium curvature ωψ². Variational reduction of the ψ-sector yields an infrared fixed point γ* = 0.639… and a structural boundary near z† ≈ 1.7. The framework is presented respectfully as a complementary structural reading to be evaluated alongside ΛCDM as Euclid DR1 refines the late-time Universe.

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