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math-ph2026
Bounding relative entropy for non-unitary excitations in quantum field theory
Markus B. Fröb, Leonardo Sangaletti
We show how one can use the convexity of non-commutative norms to bound the relative entropy between a faithful state on a von Neumann algebra and an arbitrary excitation the…
math-ph2026
Haag Duality in the Thermal Sector
Stefano Galanda, Leonardo Sangaletti
We prove that the net of localised von Neumann algebras associated with a real scalar field propagating on Minkowski spacetime, in the KMS representation, satisfies a generalised v…