The Horizon Expansion Fractal (HEF) Model: A Unified Framework for General Relativity, Loop Quantum Gravity, and Cosmic Expansion
Creators: name: monroe, scott
Publisher: name: Zenodo
Year: 2025

description: The Horizon Expansion Fractal (HEF) Model: A Unified Framework for General Relativity, Loop Quantum Gravity, and Cosmic Expansion

Title Page





Title: The Horizon Expansion Fractal (HEF) Model: A Unified Framework for General Relativity, Loop Quantum Gravity, and Cosmic Expansion




Author: Scott Monroe




Affiliation: Independent Researcher




Date: February 16, 2025



Abstract

The Horizon Expansion Fractal (HEF) model introduces a novel, recursive fractal framework for understanding cosmic expansion, quantum gravity, and black hole physics. At its core, the HEF model proposes that space-time evolves through dynamic, self-similar transformations governed by a fractal scaling function S(H,t)=e−αHt, where HH is the Hubble parameter and tt is cosmic time. This recursive fractal expansion modifies fundamental physical laws, including the Einstein-Hilbert action and Friedmann equations, by introducing fractal-dependent terms that account for the universe's evolving structure. Key innovations of the HEF model include:





Dynamic Fractal Expansion: Space-time expands recursively, with each step determined by scaling and rotation functions, providing a new perspective on cosmic acceleration and dark energy.




Fractal Corrections to Physical Laws: The model modifies gravitational and cosmological equations to incorporate fractal geometry, offering a unified framework for large-scale cosmic dynamics and small-scale quantum effects.




Discrete Time Evolution: Time evolves in discrete steps tied to fractal scaling, aligning with quantum gravity frameworks like Loop Quantum Gravity (LQG) and suggesting a fundamental granularity to space-time.




Black Hole Physics: The HEF model introduces fractal corrections to black hole entropy and event horizons, potentially resolving the black hole information paradox and offering new insights into quantum gravity.



The HEF model could have profound implications for cosmology, providing an alternative explanation for dark energy and cosmic acceleration through its time-dependent fractal expansion. It also bridges the gap between quantum gravity and general relativity, suggesting a discrete, fractal structure to space-time at Planck scales. Mathematically, the HEF model advances fractal geometry by introducing dynamic, recursive transformations that can be applied to other complex systems. By unifying fractal mathematics, cosmology, and quantum gravity, the HEF model offers a groundbreaking approach to some of the most challenging questions in modern physics.

1. Introduction

The Horizon Expansion Fractal (HEF) model emerged from a fundamental question: could the universe's relentless growth, from the Planck length to its observable edge, be captured in a single, recursive form? Fractals—self-similar patterns repeating across scales—felt like a natural fit. As I studied the fractal patterns in tree branches, galaxy spirals, and the intricate arrangement of nature, I realized that all of nature, both micro and macro, followed this same pattern of organization. This insight deepened my curiosity about whether space-time itself might reflect this recursive design. My starting point was the Friedman-Lemaitre-Robertson-Walker(FLRW)  model, the backbone of modern cosmology, which describes an expanding universe driven by dark energy.

The scaling factor Sn drove growth, Rn = R0(H0/Hn)^n set radial extent, and a decaying rotation angle θn = B0 exp⁡(−tn/τ) smoothed early spirals into isotropy—mirroring cosmic evolution. The horizon shift En emerged as my anchor to reality, tying HEF to the observable universe. Then came the breakthrough: recursion wasn't just geometric—it generated entropy. Visualizing tiny spheres scaling and spinning, I saw complexity pile up, and from Sn, I derived a fractal dimension D=2.7, later validated against CMB structure.

This thesis aims to detail HEF's construction, validation, and implications. From a personal quest to a model aligning with FLRW and CMB, it explores whether space-time's fabric might be fractal, and how I found a way to see it unfold. My goal is twofold: to solidify HEF's place in cosmology and to pave my path to formal study in mathematics and physics, a dream long deferred by circumstance.

Reconciling quantum mechanics with general relativity is an unresolved problem in modern physics. General relativity describes space-time as a continuous manifold, whereas LQG suggests a fundamentally discrete nature at the Planck scale. The HEF model proposes a recursive geometric framework wherein space-time undergoes self-similar expansion regulated by cosmic parameters. This section outlines the primary components governing HEF:





A scaling function linked to the Hubble parameter,




A beta function dictating rotational decay over cosmic time,




An escape radius encoding space-time expansion across different scales.



2. Mathematical Foundations of HEF

2.1 Recursive Fractal Geometry in Space-Time

HEF constructs space-time as a recursive transformation of an initial state, defining a hierarchy of structures at increasing scales. The governing transformation equation is: where , , and encode scaling, rotation, and escape parameters, respectively. The recursive formulation extends into three dimensions:

 

This framework aligns naturally with large-scale cosmic structures.

3. HEF and Cosmic Expansion

The standard FLRW cosmology, governed by the Friedmann equations: is mimicked in HEF through recursive scaling: With , the solution follows an exponential expansion consistent with FLRW predictions.

4. HEF vs. Einstein's Field Equations

4.1 HEF as a Fractal Space-Time Model

Comparing to Einstein's equations: HEF reinterprets curvature through recursive self-similar transformations rather than continuous deformation.

5. HEF and Loop Quantum Gravity

HEF's recursive discretization aligns with LQG spin network evolution, suggesting a self-similar coarse-graining of space-time. This correspondence provides a natural link between classical GR and quantum geometry.

6. HEF Field Equations

The modified field equations in HEF take the form: where incorporates fractal contributions. Expansion dynamics modify the standard FLRW equations, providing an alternative mechanism for late-time cosmic acceleration.

7. Implications for Cosmology and Black Holes

HEF alters black hole solutions by introducing recursive fractal perturbations: This suggests quantum-corrected horizons and a resolution to the information paradox.

8. HEF Model Parameter Estimations

Observational constraints from Hubble parameter data provide best-fit values for HEF parameters, demonstrating consistency with supernovae and BAO measurements while reducing dependence on dark energy.

9. Conclusion

The HEF model provides a fractal-based reinterpretation of cosmic expansion and space-time geometry, linking general relativity and quantum gravity within a recursive framework. Its implications extend beyond theoretical cosmology into observational astrophysics and quantum gravity research. HEF offers an alternative explanation for cosmic acceleration, potentially reducing the reliance on dark energy and modifying the interpretation of large-scale structure formation. Additionally, the model introduces a new approach to black hole physics, where recursive transformations contribute to quantum-corrected event horizons and modified entropy relations.

Future research directions include refining HEF’s effective action, exploring its compatibility with holographic principles, and conducting numerical simulations to test its predictions. Observationally, signatures of HEF could appear in cosmic microwave background fluctuations, gravitational wave signals, and deviations in galaxy clustering statistics. If validated, HEF may provide a profound shift in our understanding of space-time and its evolution, offering a unified framework for gravity at both macroscopic and quantum scales.