Compression Phase Gravity Extended – Molecular Evidence for ACE and Impedance in the Unified Physical Mechanism

Abstract Compression Phase Gravity (CPG) and the Andrea Coherence Equation (ACE) together predict that gravitational coupling depends not only on geometric compression but also on the internal coherence and impedance of the medium. In planetary bodies this dependence appears through stiffness, compressibility, and layering; in helium- II it appears through quantum coherence, entropy, compressibility, and superfluid fraction. In this manuscript we derive the full temperature- dependent gravitational impedance curve Ig(T) directly from modern molecular data. Using superfluid fraction, entropy, and compressibility, we construct the ACE Coherence Index and map it into gravitational response through a saturating exponential law normalized at the lambda point. A five- point molecular ledger across the helium- II regime reveals the lambda- point kink, the ACE S- curve, and the deep- superfluid plateau. With the refined least- squares coherence constant λ= 9.39×10 −7, the impedance curve exhibits a sharper early descent and a more pronounced mid- range transition, indicating strong coherence sensitivity within the superfluid. The resulting impedance curve aligns with all known helium- II gravitational signatures—including hydrostatic flattening, fountain- effect deviations, Rollin- film behaviour, isotope differences, and the full temperature- sweep master curve. These results provide the first molecular- scale evidence that gravitational coupling varies systematically with coherence and internal structure, confirming the ACE mechanism and extending CPG into a fully quantitative, data- driven regime.