General boundary quantum field theory: Timelike hypersurfaces in Klein-Gordon theory

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dc.creatorOeckl, Robert
dc.date2005-09-15
dc.date2006-03-17
dc.date.accessioned2026-07-07T10:30:17Z
dc.date.available2026-07-07T10:30:17Z
dc.descriptionWe show that the real massive Klein-Gordon theory admits a description in terms of states on various timelike hypersurfaces and amplitudes associated to regions bounded by them. This realizes crucial elements of the general boundary framework for quantum field theory. The hypersurfaces considered are hyperplanes on the one hand and timelike hypercylinders on the other hand. The latter lead to the first explicit examples of amplitudes associated with finite regions of space, and admit no standard description in terms of ``initial'' and ``final'' states. We demonstrate a generalized probability interpretation in this example, going beyond the applicability of standard quantum mechanics.
dc.description25 pages, LaTeX; typos corrected
dc.identifierhttps://arxiv.org/abs/hep-th/0509123
dc.identifierhttp://arxiv.org/abs/hep-th/0509123
dc.identifierPhys.Rev.D73:065017,2006
dc.identifierdoi:10.1103/PhysRevD.73.065017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178086
dc.subjectHigh Energy Physics - Theory
dc.subjectQuantum Physics
dc.titleGeneral boundary quantum field theory: Timelike hypersurfaces in Klein-Gordon theory
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