The Hubble Tension as a Péclet Regime Boundary: Drift-Diffusion Cosmology and the Pe=1 Crossing
The Hubble Tension as a Péclet Regime Boundary: Drift-Diffusion Cosmology and the Pe=1 Crossing
Derives the cosmological Péclet number Pe_Λ = Λc⁴/[4πG(ρc²+3p)] from the Friedmann acceleration equation and shows that Pe_Λ=1 is term-for-term identical to the cosmic deceleration-acceleration transition (z≈0.633). The Hubble tension — H₀=67.4 from CMB vs H₀=73.0 from the distance ladder — is explained as two measurements on opposite sides of this Pe=1 regime boundary, not a measurement error or new physics. The sign, location, and order of magnitude of the discrepancy are predicted from first principles.
Part of the Void Framework research project (Moreright DAO).
void framework, Pe=1 crossing, DESI, Hubble tension, cosmological constant, cosmic acceleration, Friedmann equation, Planck 2018, regime boundary, Péclet number, drift-diffusion cosmology, H0 tension, dark energy transition
void framework, Pe=1 crossing, DESI, Hubble tension, cosmological constant, cosmic acceleration, Friedmann equation, Planck 2018, regime boundary, Péclet number, drift-diffusion cosmology, H0 tension, dark energy transition
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