Internal Versus External Delensing on a Bounced Sky: Tracer Correlation Coefficients Recomputed

This study computes which delensing tracer performs best when the true lensing field has bounce-suppressed large-scale power, within a cosmology whose collapse is halted by spin-torsion repulsion at the Aldred Limit density of 9.72e+54 g per cubic centimetre on the neutron branch. The bounce leaves a scale-dependent imprint on the lensing potential: power is reduced by a fraction 0.134 at multipole 10, by 0.0018 at multipole 100, and by only 0.00000 at multipole 1000, for the stated bounce parameters. Integrated over the multipole range considered, the lensing power in the modified cosmology is 0.871 of its standard value, the root-mean-square deflection moves from 3.89 to 3.63 arcminutes in the grid approximation used here, and the low-multipole B-mode power ratio is 0.871. The corresponding lensing contribution expressed as an equivalent tensor-to-scalar ratio is 0.0087, the delensing residual fraction changes from 0.250 to 0.347, and the total reconstruction signal-to-noise for the stated instrument configuration is 13.4. All quantities are computed from stated assumptions and published comparison values; nothing here is a measurement.