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PROPAGATION OF SINGULARITIES ON AdS SPACETIMES FOR GENERAL BOUNDARY CONDITIONS AND THE HOLOGRAPHIC HADAMARD CONDITION

Published online by Cambridge University Press:  18 March 2020

Oran Gannot  and
Michał Wrochna Open the ORCID record for Michał Wrochna [Opens in a new window]
Oran Gannot
Affiliation:
Department of Mathematics, Lunt Hall, Northwestern University, Evanston, IL60208, USA (gannot@northwestern.edu)
Michał Wrochna
Affiliation:
Université de Cergy-Pontoise, 2 av. Adolphe Chauvin, 95302 Cergy-Pontoise Cedex, France (michal.wrochna@u-cergy.fr)
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Abstract

We consider the Klein–Gordon equation on asymptotically anti-de-Sitter spacetimes subject to Neumann or Robin (or Dirichlet) boundary conditions and prove propagation of singularities along generalized broken bicharacteristics. The result is formulated in terms of conormal regularity relative to a twisted Sobolev space. We use this to show the uniqueness, modulo regularizing terms, of parametrices with prescribed $\text{b}$-wavefront set. Furthermore, in the context of quantum fields, we show a similar result for two-point functions satisfying a holographic Hadamard condition on the $\text{b}$-wavefront set.

Keywords

propagation of singularitiesKlein–Gordon equationanti-de Sitter spacetimesquantum field theory on curved spacetimesHadamard states
Type
Research Article
Information
Journal of the Institute of Mathematics of Jussieu , Volume 21 , Issue 1 , January 2022 , pp. 67 - 127
Copyright
© The Author(s) 2020. Published by Cambridge University Press

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