A Harmonic Cosmological Model Structured by a Golden Scalar Field

This work presents a harmonic cosmological model based on a scalar field structured by the golden ratio φ. The model introduces a dynamic exponent n(t) controlling the energy dilution of the scalar field and reformulates the Friedmann equation accordingly. It allows for a cyclic evolution of the universe, avoids the initial singularity, and offers a unified geometric interpretation of dark energy and dark matter. Analytical expressions, theoretical motivations, and observational perspectives are included.