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- W1617490967 abstract "In the theory of nets of observable algebras, the modular operators associated with wedge regions are expected to have a natural geometric action, a generalization of the Bisognano-Wichmann condition for nets associated with Poincare-covariant fields. Here many possible such modular covariance conditions are discussed (in spacetime of at least three dimensions), including several conditions previously proposed and known to imply versions of the PCT and spin-statistics theorems. The logical relations between these conditions are explored: for example, it is shown that most of them are equivalent, and that all of them follow from appropriate commutation relations for the modular automorphisms alone. These results allow us to reduce the study of modular covariance to the case of systems describing non-interacting particles. Given finitely many Poincare-covariant non-interacting particles of any given mass, it is shown that modular covariance and wedge duality must hold, and the modular operators for wedge regions must have the Bisognano-Wichmann form, so that the usual free fields are the only possibility. For models describing interacting particles, it is shown that if they have a complete scattering interpretation in terms of such non-interacting particles, then again modular covariance and wedge duality must hold, and the modular operators for wedge regions must have the Bisognano-Wichmann form, so that wedge duality and the PCT and spin-statistics theorems must hold." @default.
- W1617490967 created "2016-06-24" @default.
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- W1617490967 date "1995-11-29" @default.
- W1617490967 modified "2023-09-27" @default.
- W1617490967 title "Modular Covariance and the Algebraic PCT/Spin-Statistics Theorem" @default.
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