Observable Deviations from Standard QED in Finite Reversible Closure: Operator Selection and Empirical Bounds - Paper 16

Observable Deviations from Standard QED in Finite Reversible Closure: Operator Selection and Empirical Bounds - Paper 16 ABSTRACT Papers 10–15 derive a composite matter sector and a gauge-compatible holonomy sector from finite reversible closure (FRC), with infrared relativistic universality, maximal signal velocity c = lp/tp, 3+1D scalar closure, Z2 grading, and mass completion realised via strictly local doubled-sector mixing. Paper 16 identifies concrete, falsifiable deviations from standard QED implied by this structure. Unlike generic Planck-suppressed effective field theory treatments, FRC enforces strict operator selection rules from locality, unitarity, gauge redundancy, isotropy, grading symmetry, and bounded spectral structure. We derive the allowed leading higher-dimension operators, classify Lorentz-invariant versus Lorentz-violating corrections, analyse dispersion, static potentials and threshold effects and provide a coefficient-mapping framework connecting experiment directly to microscopic update dynamics. INTRODUCTION The Finite Reversible Closure (FRC) programme builds matter and gauge structure from strictly local, finite-dimensional reversible update. Paper 10 constructed a gauge-invariant composite excitation.Paper 11 derived Z2 parity.Paper 12 operationalised involutive holonomy.Paper 13A and 13B derived the minimal two-component and first-order kinetic structure.Paper 14 completed the 3+1D representation and identified lattice doubling.Paper 15 constructed the doubled-sector mass operator and derived the infrared effective action. Paper 16 addresses the next structural step; Given the infrared effective theory derived from lattice closure, what observable deviations from standard QED are implied? Unlike generic effective field theory approaches that permit all operators consistent with assumed symmetries, FRC restricts operators through;- Finite update depth and locality; Exact unitarity and bounded spectrum; Gauge redundancy of the holonomy sector; Infrared isotropy and scalar closure and Z2 grading and doubled-sector structure. The result is a tightly constrained set of admissible higher-dimension corrections.