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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampManoel, João Paulo Pitelli-
dc.typeOutro documentopt_BR
dc.titleHadamard states for a scalar field in anti-de Sitter spacetime with arbitrary boundary conditionspt_BR
dc.contributor.authorPitelli, J. P. M.-
dc.subjectGravitaçãopt_BR
dc.subject.otherlanguageGravitationpt_BR
dc.description.abstractIn a recent paper [C. Dappiaggi and H. C. R. Ferreira, Phys. Rev. D 94, 125016 (2016)], the authors argued that the singularities of the two-point functions on the Poincare domain of the n-dimensional anti-de Sitter spacetime (PAdS(n)) have the Hadamard form, regardless of which (Robin) boundary condition is chosen at the conformal boundary. However, the argument used to prove this statement was based on an incorrect expression for the two-point function G(+)(x, x'), which was obtained by demanding AdS invariance for the vacuum state. In this comment I show that their argument works only for Dirichlet and Neumann boundary conditions and that the full AdS symmetry cannot be respected by nontrivial Robin conditions (i.e., those which are neither Dirichlet nor Neumann). By studying the conformal scalar field on PAdS(2) I find the correct expression for G(+)(x, x') and show that, notwithstanding this problem, it still has the Hadamard formpt_BR
dc.relation.ispartofPhysical review D: covering particles, fields, gravitation, and cosmologypt_BR
dc.relation.ispartofabbreviationPhys. rev. Dpt_BR
dc.publisher.cityCollege Park, MDpt_BR
dc.publisher.countryEstados Unidospt_BR
dc.publisherAmerican Physical Societypt_BR
dc.date.issued2019-
dc.date.monthofcirculationMaypt_BR
dc.language.isoengpt_BR
dc.description.volume99pt_BR
dc.description.issuenumber10pt_BR
dc.rightsAbertopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn2470-0010pt_BR
dc.identifier.eissn2470-0029pt_BR
dc.identifier.doi10.1103/PhysRevD.99.108701pt_BR
dc.identifier.urlhttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.99.108701pt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumber2018/01558-9; 2013/09357-9pt_BR
dc.date.available2020-05-13T15:57:28Z-
dc.date.accessioned2020-05-13T15:57:28Z-
dc.description.provenanceSubmitted by Mariana Aparecida Azevedo (mary1@unicamp.br) on 2020-05-13T15:57:28Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-08-27T19:16:22Z : No. of bitstreams: 1 000469329900025.pdf: 180521 bytes, checksum: 8caecbde4be20da94639fb88cd44a719 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-05-13T15:57:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2019en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/340796-
dc.contributor.departmentDepartamento de Matemática Aplicadapt_BR
dc.contributor.unidadeInstituto de Matemática, Estatística e Computação Científicapt_BR
dc.identifier.source000469329900025pt_BR
dc.creator.orcid0000-0002-5728-5014pt_BR
dc.type.formComentáriopt_BR
dc.identifier.articleid108701pt_BR
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