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- W4380993452 abstract "Given a Haag-Kastler net on a globally hyperbolic spacetime, one can consider a family of regions where quantum charges are supposed to be localized. Assuming that the net fulfils certain minimal properties (factoriality of the global observable algebra and relative Haag duality), we give a geometric criterion that the given family must fulfil to have a superselection structure with charges localized on its regions. Our criterion is fulfilled by all the families used in the theory of sectors (double cones, spacelike cones, diamonds, hypercones). In order to take account of eventual spacetime symmetries, our superselection structures are constructed in terms of covariant charge transporters, a novel cohomological approach generalizing that introduced by J.E. Roberts. In the case of hypercones, with the forward light cone as an ambient spacetime, we obtain a superselection structure with Bose-Fermi parastatistics and particle-antiparticle conjugation. It could constitute a candidate for a different description of the charged sectors introduced by Buchholz and Roberts for theories including massless particles." @default.
- W4380993452 created "2023-06-17" @default.
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- W4380993452 date "2023-06-14" @default.
- W4380993452 modified "2023-09-26" @default.
- W4380993452 title "Where charged sectors are localizable: a viewpoint from covariant cohomology" @default.
- W4380993452 doi "https://doi.org/10.48550/arxiv.2306.08449" @default.
- W4380993452 hasPublicationYear "2023" @default.
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