Unary Field Theory: The CMB B-Mode Bump at ℓ ∼ 85–95 from Reheating Oscillations

The Unary Field Theory (UFT) predicts a distinctive "bump" in the CMB B-mode polarization power spectrum at multipoles ℓ ∼ 85–95, with amplitude Δr ∼ 0.001–0.002 superimposed on the baseline r = 0.00383. This feature arises from coherent oscillations of the unary field Ψ during the reheating phase following inflation, modulated at the scalar field mass m_ϕ = 1.1 × 10^(-22) eV—the same mass that governs ultralight scalar dark matter on galactic scales. Unlike generic Starobinsky inflation, where reheating is instantaneous, the UFT links the reheating dynamics directly to dark matter, making the B-mode bump a parameter-free, cross-scale prediction. This paper provides the step-by-step derivation of the bump amplitude and frequency, and outlines the detection strategy using LiteBIRD and CMB-S4.