On Mutual Information in Multipartite Quantum States and Equality in Strong Subadditivity of Entropy

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/91635The challenge of equality in the strong subadditivity inequality of entropy is approached via a general additivity of correlation information in terms of nonoverlapping clusters of subsystems in multipartite states (density operators). A family of tripartite states satisfying equality is derived.8 pages; Latex2e and Revtex4Quantum PhysicsOn Mutual Information in Multipartite Quantum States and Equality in Strong Subadditivity of Entropytext