Hubble Tension is Not Tension

HUBBLE TENSION IS NOT TENSION ■□■□■□■□■□■□■□■ Reflective Physics Theory (RPT)Resolving Cosmological Anomalies by Eliminating Dark Matterand Dark EnergyFormal Repository Documentation & Philosophical Paradigm ShiftPooria HassanpourAugust 6, 2026 AbstractThis repository contains the mathematical framework, numerical verification scripts, andobservational analyses of Reflective Physics Theory (RPT). The fundamental premiseof this work is not to propose a modified parameter set to compete within the standardΛCDM model, but rather to prove that Dark Matter and Dark Energy are invalid,non-existent mathematical artifacts. By establishing the dynamics of a variable speedof light c(ρg) governed by localized graviton-density fields, RPT resolves the Hubble tension,galactic rotation curves, and cosmic acceleration naturally without requiring dark sectors,unobserved particles, or fine-tuned dark energy densities.CRITICAL NOTICE FOR REVIEWERS & RESEARCHERSCore Clarification: Reflective Physics Theory (RPT) does NOT operate withinor extend the ΛCDM cosmological model. It is not an alternative parametrizationdesigned to fit dark matter halos or dark energy equations of state.RPT proves that Dark Matter and Dark Energy are complete artifactsof a flawed fundamental assumption: the assumption that the speed of light cremains strictly constant in variable gravitational/graviton-density potential fields.When local and global measurements of light propagation fail to account for the gravitondensityfield ρg, the resulting mathematical discrepancy is misattributed to non-existent physicalentities (”Dark Matter” for flat rotation curves and ”Dark Energy” for cosmic expansion tension).Once c(ρg) is correctly evaluated, these entities vanish entirely from the field equations.1 Foundational Axioms of RPT1.1 The Graviton-Density Field and c(ρg)In Reflective Physics Theory, the speed of light c is a dynamic scalar variable dependent on thelocal graviton density field ρg:c(ρg) = c0 f(ρg) (1)where c0 is the asymptotic vacuum velocity of light and f(ρg) encodes the interaction densityof the graviton continuum. 1.2 Structural Compulsion and Elimination of Dark Sectors1. Invalidity of Dark Matter: Galactic rotation curves flatten naturally due to the refractivemodification of spacetime metric coefficients under localized graviton accumulation.No dark matter halo (Mdark) is present or required.2. Invalidity of Dark Energy: The apparent accelerated expansion inferred from TypeIa Supernovae and the early-vs-late H0 discrepancy (Hubble Tension) arise directly fromtreating c as a universal constant across different epochal graviton densities.2 Repository Overview & Verification ScriptsThis repository contains full numerical implementations demonstrating the self-consistency ofRPT across multiple scale regimes:Script / Module Domain Physical Verification Objectivemercury precession.py Relativistic Dynamics Verification of orbital mechanics and perihelionshifts under c(ρg) without singularities.nbody softcore.py Gravitational Systems N-body integration proving singularity-freecollapse and stable galactic velocity profiles.quantum well spectra.py Microscopic Mapping Exact mapping of graviton-density frequencyspectra to quantum energy levels.hubble chronometers.py Cosmological Data Direct fit against 38 Cosmic Chronometerdata points demonstrating H0 tension resolution.Table 1: Overview of verification scripts available in this repository.3 Key Observational PredictionsRPT provides five explicit, falsifiable observational signatures that distinguish it from standardGR and ΛCDM:1. Gravitational wave propagation velocity shifts vgw(ρg) in high-density stellar environments.2. Precise void-boundary density gradient profiles reflecting c(ρg) refraction transitions.3. Frequency-dependent time delays in high-energy gamma-ray bursts passing near galacticcores.4. Elimination of phantom matter requirements in weak lensing shear maps.5. Systemically consistent H0 values across early-universe (CMB) and late-universe (z-ladder)observations when metric scales are calibrated to c(ρg).4 Author Information & CitationAuthor: Pooria HassanpourFramework: Reflective Physics Theory (RPT) / Zero-Center Field (ZCF) / Structural CompulsionLicense: Open Academic License - Free for research, verification, and formal review. References[1] Hassanpour, P., The Hubble Tension is Not a Tension: Evidence for a Variable Speed ofLight in a Graviton-Density Field, Formal Manuscript & Verification Codebase, 2026. Appendix A & python codes