Parity-Odd TB/EB Correlations

Standard cosmology assumes that the universe is parity-symmetric at the largest scales, predicting zero correlation between temperature T and B-mode polarization, and zero correlation between E-mode and B-mode polarization. Recent analyses of Planck polarization data find nonzero TB and EB signals at a level of 2–3 sigma, suggesting either parity violation, residual foreground contamination, or an unmodeled systematic. In SCT, a preferred collision axis naturally breaks parity symmetry at cosmological scales. Angular momentum is a pseudovector — it transforms differently from a polar vector under parity inversion. When the collision deposits a well-defined angular momentum J into the thermalized plasma, the resulting perturbation field acquires a handedness: perturbations that spiral in the same sense as J are statistically more numerous than those spiraling against it. This helical asymmetry converts E-mode polarization power into B-modes through a rotation of the polarization plane, generating the observed nonzero TB and EB correlations.

The amplitude of the TB and EB correlations in SCT depends on the magnitude of the primordial angular momentum and on the angle between the collision axis and the line of sight to the last scattering surface. Because the angular momentum vector is the same one responsible for the Axis of Evil alignment and the CMB quadrupole direction, the TB/EB signal should be concentrated at the same preferred sky direction as the other low-multipole anomalies. This directional coincidence is a falsifiable prediction: if TB and EB signals are found to peak along the Axis of Evil axis and diminish at high galactic latitudes perpendicular to it, SCT is supported. If the signal is isotropically distributed, an instrumental or foreground explanation is more likely.