Version 2.0 - Correction Notice This version supersedes V1.9.0. A factor-of-2 error in the photon sphere derivation led to the incorrect values "6.066% efficiency" and η = 1.06066. Those results are withdrawn. The mathematically consistent result from the full 5D field equations is η = √(1 + Φ₀) = 1.03033, a 3.03% diameter enhancement over General Relativity. The complete derivational framework is published in: DOI: 10.5281/zenodo.20403335 Do not use or cite V1.9.0. The correct predictions are in DOI: 10.5281/zenodo.20403827.

Ali Alhawarat