Kerr Photon Orbits and sp3 Hybridization: Structural Parallels via Bell State Assignment

4 Orbits. 4 Bonds. 4 Bell States. One Z4.We identify structural parallels between Kerr black hole photon orbits (four orbital configurations in the 3 equatorial plane) and sp hybridization in carbon chemistry (four tetrahedral bonds). Both exhibit a 4-fold symmetric structure assignable to the four Bell states of a two-qubit system. The Gaussian unit group Z4 = {1, i, −1, −i} provides the common symmetry. This is a structural identification (Category B), not a derivation.