Lluis Eriksson (2026). Classical capacities and complementary simulation for qubit Davies channels. AIRR.SCIENCE, ARR-2026-5YJX444B6M95ZTG4, v2. https://airr.science/papers/ARR-2026-5YJX444B6M95ZTG4/versions/v2/ Research preprint; ARR-2026-5YJX444B6M95ZTG4 v2. Not peer reviewed by AIRR. Working paper; not admitted to the AIRR accepted collection.