Relaxation-Driven Cyclic Cosmology (RDCC) v6.0: Black Hole Bounces as Local CPT-Fixpoints, Full Perturbation Transfer Matrix, and Mirror-Sector Microphysics

Relaxation-Driven Cyclic Cosmology (RDCC) v6. 0: Black Hole Bounces as Local CPT-Fixpoints, Full Perturbation Transfer Matrix, and Mirror-Sector Microphysics This major release (v6. 0) advances the nonsingular, eternally cyclic RDCC model based on a single effective complex scalar field Φ in a tilted double-well potential (tilt from radiative Coleman–Weinberg corrections). Field relaxation drives dynamic dark energy (wDE > -1) and eternal expansion-contraction cycles. A CPT-conjugate mirror sector provides cold dark matter and resolves baryon asymmetry (ηB ≈ 6. 1×10^-10, ΩDM/Ωb ≈ 5. 38), preserving global CPT symmetry exactly. Key innovations in v6. 0: - Black holes as local CPT-symmetric mini-bounces: Interior metric with sectoral leakage of Hawking radiation resolves the information paradox. Testable signatures: QNM echoes and GW anisotropies (LIGO/Virgo). - Full perturbation transfer matrix across the bounce: CPT-matching ensures scale-invariance (nₛ ≈ 0. 964) and tensor knick structures in GW spectrum (LISA/PTA-testbar). - Refined mirror-sector microphysics: Boltzmann equations for decoupling, precise ΔNₑff 0. 1 (CMB-S4/BBN), incorrect ηB or ΩDM/Ωb, no 21-cm flattening (SKA/HERA). This version builds on v5. 0 (Zenodo 10. 5281/zenodo. 18307836) and the full RDCC ecosystem (starting from v1. 0–v3. 0 at https: //zenodo. org/records/18204087). Full LaTeX source and code snippets in Appendix. While the core of RDCC remains a structural, timeless framework with fixpoint character, this document explores a dynamical realization of the bounce mechanism to enable concrete, falsifiable predictions. Related documents and the full RDCC ecosystem are available via Zenodo: https: //zenodo. org/records/18204087 Michael Lehmannmi. lehmann@gmx. de