Algebraic quantum field theory on spacetimes with timelike boundary

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Benini, Marco, Dappiaggi, Claudio and Schenkel, Alexander (2018) Algebraic quantum field theory on spacetimes with timelike boundary. Annales Henri Poincaré, 19 (8). pp. 2401-2433. ISSN 1424-0661

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Official URL: https://link.springer.com/article/10.1007/s00023-018-0687-1

Abstract

We analyze quantum field theories on spacetimes M with timelike boundary from a model independent perspective. We construct an adjunction which describes a universal extension to the whole spacetime M of theories defined only on the interior intM. The unit of this adjunction is a natural isomorphism, which implies that our universal extension satisfies Kay's F-locality property. Our main result is the following characterization theorem: Every quantum field theory on M that is additive from the interior (i.e. generated by observables localized in the interior) admits a presentation by a quantum field theory on the interior intM and an ideal of its universal extension that is trivial on the interior. We shall illustrate our constructions by applying them to the free Klein-Gordon field.

Item Type:	Article
RIS ID:	https://nottingham-repository.worktribe.com/output/949629
Keywords:	Algebraic quantum fireld theory; Spacetimes with timelike boundary; Universal constructions; F-locality; Boundary conditions
Schools/Departments:	University of Nottingham, UK > Faculty of Science > School of Mathematical Sciences
Identification Number:	https://doi.org/10.1007/s00023-018-0687-1
Depositing User:	Eprints, Support
Date Deposited:	31 May 2018 08:43
Last Modified:	04 May 2020 19:48
URI:	https://eprints.nottingham.ac.uk/id/eprint/52126

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