Density Field Dynamics

Documentation and preprints for a scalar-refractive approach to gravitational phenomenology

Gary Alcock, Independent Researcher
ORCID: 0009-0009-5682-6518 · garyalcock.com

Independent research program in scalar-refractive gravity and precision metrology; open to experimental collaboration on cavity–atom LPI and ion–neutral tests.

Overview

Density Field Dynamics (DFD) is a scalar-tensor framework in which a refractive field ψ governs both photon propagation (n = eψ) and test-mass acceleration (a = c²/2 ∇ψ). The theory reproduces standard post-Newtonian predictions in the weak-field limit while making distinct predictions for optical clock comparisons, cavity–atom frequency ratios, and galactic rotation curves.

The extended framework derives α⁻¹ = 137.036 and nine fermion masses from CP²×S³ topology with zero continuous fit parameters.

This site archives preprints, data packages, and experimental proposals associated with this research program. All documents are preprints unless otherwise noted.

Papers and Preprints

Title Date Links
Density Field Dynamics: A Complete Unified Theory (v2.0)
Comprehensive 135-page unified treatment with 623 equations and 41 theorems. Gravity sector: full PPN match (γ=β=1), gravitational waves (cT=c), galactic dynamics (SPARC sample of 175 galaxies; RAR fit quoted at 4.8% mean absolute residual for N=153), cluster masses (16/16 within ±10%). Gauge emergence: SU(3)×SU(2)×U(1) from CP²×S³ topology, α⁻¹=137.036 (Theorem F.13), Higgs v=246.09 GeV (observed 246.22 GeV), 9 charged fermion masses (1.9% mean error), θ̄=0 (strong CP solved without axion). Cosmology: ψ-screen reconstruction, H₀=72.09 km/s/Mpc. Predictions: LPI slope ξ≈1.01–1.45 (GR: 0), UVCS Γ=4 (confirmed: 4.4±0.9), species-dependent clock coupling kα≈8.47×10⁻⁶. Zero continuous fit parameters throughout.
Dec 2025 PDF · Zenodo
Ab Initio Derivation of the Fine-Structure Constant from Density Field Dynamics
Lattice Monte Carlo verification of α emergence from Chern-Simons quantization on S³. 86 independent runs across lattice sizes L=4–12 with kmax=60 yield α⁻¹=137.036 with deviation <0.1% from experiment. No fitted parameters.
Dec 2025 PDF
Two Numerical Relations Linking the Fine-Structure Constant to Gravitational Phenomenology
Parameter-free predictions connecting α to gravitational observables: MOND acceleration scale a₀=2√α·cH₀ and gravitational clock coupling kα=α²/(2π)≈8.5×10⁻⁶. Both testable with current optical clock technology.
Dec 2025 PDF · Zenodo
kα and the a² Invariant: A Unified Acceleration Scale from Galaxies to Atomic Clocks
Derives the α-relations from scalar self-coupling structure. Extends predictions to strong-field regimes and provides clock comparison signatures at the 10⁻⁵ level across multiple atomic species.
Dec 2025 PDF
Solar-Locked Differential in Ion–Neutral Optical Frequency Ratios
Analysis of published ROCIT frequency ratio data (Yb⁺/Sr) revealing perihelion-locked modulation: amplitude A=(−1.045±0.078)×10⁻¹⁷ with period matching Earth's orbital eccentricity. Consistent with sector-differential ψ coupling; independent replication encouraged.
Oct 2025 PDF · Zenodo
Parametrized Post-Newtonian Analysis of Density Field Dynamics
Complete PPN expansion in the weak-field, slow-motion limit. All ten PPN parameters match General Relativity at 1PN order: γ=β=1, ξ=α₁=α₂=α₃=ζ₁=ζ₂=ζ₃=ζ₄=0. DFD is observationally indistinguishable from GR for all current solar system tests.
Sep 2025 PDF
Completing Local Position Invariance Tests: A Cavity–Atom Frequency Ratio Protocol
Experimental protocol for testing LPI via altitude-separated comparisons of cavity-stabilized and atomic transition frequencies. Predicts non-null slope at 10⁻⁵ level distinguishing DFD from GR. Suitable for JILA, PTB, NIST, or NPL implementation.
Sep 2025 PDF · Zenodo
Strong Fields and Gravitational Waves in Density Field Dynamics
Extension to strong-field regime: photon sphere locations, black hole shadow predictions, and gravitational wave propagation. Tensor wave speed cT=c exactly, satisfying GW170817 constraint. All parameterized post-Einsteinian (ppE) bounds satisfied.
Sep 2025 PDF · Zenodo
Well-Posedness and Boundary Value Problems for the ψ Equation
Rigorous PDE analysis of the DFD field equation. Establishes existence, uniqueness, and regularity of weak solutions in appropriate Sobolev spaces. Proves energy conservation and derives asymptotic boundary conditions.
Sep 2025 PDF
Accidental and Intentional Constraints on EM→ψ Back-Reaction
Laboratory bounds on electromagnetic coupling to ψ from cavity stability measurements. Constrains back-reaction parameter |λ−1|≲3×10⁻⁵, demonstrating consistency with precision metrology and identifying future experimental sensitivity targets.
Sep 2025 PDF · Zenodo
Matter-Wave Interferometry Tests of Density Field Dynamics
Predicted signatures in atom interferometers: T³ phase scaling (versus T² for Newtonian gravity) in long-baseline configurations. Quantitative predictions for Stanford 10m tower and proposed satellite experiments.
Sep 2025 PDF · Zenodo
Density Field Dynamics and the c-Field
Foundational paper establishing the core framework: field equations for ψ, energy-momentum conservation, recovery of Newtonian limit, and classical test predictions. Introduces the optical-refractive interpretation of gravitational phenomenology.
Aug 2025 PDF · Zenodo

Data and Code

Open datasets and analysis code for independent verification:

Background