CoreLumen Cosmology: Big Bang Boundary, Early-Universe Structural Dynamics, and Inflation-Replacement Experiment (Archival Edition v1.1)

This archival volume develops the CoreLumen phase–condensate cosmology from the Big Bang boundary—defined as a high-curvature effective-field-theory (EFT) validity limit—through early-universe overdamped ordering (R1), activation bifurcation, scaling accessibility (R2), and coercive stability selection. The framework formalizes a dynamical persistence principle in which long-lived cosmology exists only along a coercive stability branch occupying a parametrically suppressed subset of initial data. The volume further records a structural inflation-replacement experiment demonstrating that plateau-type potentials within the CoreLumen framework can reproduce the principal functional roles traditionally attributed to inflation: sustained accelerated expansion, nearly scale-invariant scalar tilt, small tensor amplitude, and reheating closure—while preserving the GR-like tensor sector (c_T = 1). All claims are conditional on effective-field-theory validity and compliance with the CoreLumen Structural Charter v1.0.