Lluis Eriksson (2026). Architecture-Dependent Decoherence Suppression in Passive Quantum Networks: Irreducible Channel Mixing, Squared Rate Gaps, and the Price in Dwell Time. AIRR.SCIENCE, ARR-2026-4F7SF8FXM18ANAXH, v1. https://airr.science/papers/ARR-2026-4F7SF8FXM18ANAXH/versions/v1/ Archived manuscript; ARR-2026-4F7SF8FXM18ANAXH v1. Not peer reviewed by AIRR. Historical import; not assessed by AIRR.