Spin-Density Fields and Local Gravitational Coherence: A Quantitative Sketch for Spin-Induced Cosmology

This document presents a first quantitative elaboration of the speculative cosmological model introduced in the essay Spin-Induced Cyclical Cosmology: Quantum Entanglement, Black Holes, and the Dynamic Universe (submitted to viXra.org on June 9, 2025, Ref. 17195313). The model connects quantum entanglement, spin conservation, and the dynamic behavior of black holes in a locally asynchronous, non-equilibrium universe. This companion paper introduces basic mathematical expressions to represent spin-density distributions, entropy modulation, and information coherence effects, especially in relation to dark matter and energy analogues. It is published by Heiko Gross (independent researcher), in collaboration with AI (ChatGPT, OpenAI), to support further exploration and feedback. The archive includes a .tex source file intended for scientific transparency and reusability.