On Haag Duality for Pure States of Quantum Spin Chain
classification
🧮 math-ph
math.MP
keywords
dualityhaagintervalslocalizedobservablespurequantumspin
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We consider quantum spin chains and their translationally invariant pure states. We prove Haag duality for quasilocal observables localized in semi-infinite intervals when the von Neumann algebras generated by observables localized in these intervals are not type I.
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