Eq - An Operational Separation of State Dynamics and Gravitational Readout

This work develops an operational framework separating quantum state dynamics (C2) from classical spacetime readout (C3) within an OT–SDW junction architecture. The Einstein–Hilbert sector is kept universal and state-independent (“Einstein lock”), while preparation dependence enters exclusively through a source-only constitutive response μ(pκ). Three main results are established: Deterministic-readout transparency: strictly unitary evolution cannot activate a classical metric readout channel. Minimal covariant closure: a state-dependent exchange current required by the Bianchi identity is derived in closed form. Certified emergence bounds: under modified logarithmic Sobolev inequalities, a quantitative timescale for entry into the classical-readout regime is obtained. The framework does not modify General Relativity in its classical domain; rather, it provides a regime-dependent interface between open quantum system dynamics and effective gravitational readout. In fully declassicalized regimes, the appropriate description remains entirely at the level of CPTP/GKSL state dynamics.