Lluis Eriksson (2026). Quantum reference activation of classical symmetric channels. AIRR.SCIENCE, ARR-2026-564FZ70CSN83KACD, v1. https://airr.science/papers/ARR-2026-564FZ70CSN83KACD/versions/v1/ Research preprint; ARR-2026-564FZ70CSN83KACD v1. Not peer reviewed by AIRR. Working paper; not admitted to the AIRR accepted collection.