Causal-Information Cyclic Cosmology: Clean-Region Regeneration via Ekpyrotic Contraction and Loop-Quantum Bounce

This work develops a cyclic cosmological framework in which an admissible cycle consists of a low-density turning event, an ekpyrotic contraction phase that suppresses anisotropy, and a nonsingular loop-quantum-cosmology-type bounce. Its central claim is not that the entropy of the entire universe decreases, but that a finite post-bounce causal region can satisfy a clean-region bound on accessible entropy density after reheating. The theory’s main conceptual novelty is an information-theoretic bright/dark decomposition defined by causal accessibility, horizon bookkeeping, and generalized-entropy compatibility. In this framework, cyclic regeneration is formulated operationally through retained entropy fraction, residual entropy control, reheating conditions, and perturbation-transfer structure, with background and observational claims organized through explicit run-certification and pass/fail artefact criteria.