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On Haag Duality for Pure States of Quantum Spin Chain

M. Keyl·Taku Matsui·D. Schlingemann·R. F. Werner
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Abstract

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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M. Keyl, Taku Matsui, D. Schlingemann, R. F. Werner. 2007-03-02. On Haag Duality for Pure States of Quantum Spin Chain. https://doi.org/10.1142/s0129055x08003377

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