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Dilaton quantum cosmology in two dimensions

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dc.contributor.authorMazzitelli, Francisco D.cat
dc.contributor.authorRusso, J. G. (Jorge Guillermo)cat
dc.date.accessioned2010-05-06T12:06:23Z
dc.date.available2010-05-06T12:06:23Z
dc.date.issued1993cat
dc.description.abstractWe consider a renormalizable two-dimensional model of dilaton gravity coupled to a set of conformal fields as a toy model for quantum cosmology. We discuss the cosmological solutions of the model and study the effect of including the back reaction due to quantum corrections. As a result, when the matter density is below some threshold new singularities form in a weak-coupling region, which suggests that they will not be removed in the full quantum theory. We also solve the Wheeler-DeWitt equation. Depending on the quantum state of the Universe, the singularities may appear in a quantum region where the wave function is not oscillatory, i.e., when there is not a well-defined notion of classical spacetime.eng
dc.format.extent8 p.cat
dc.format.mimetypeapplication/pdfeng
dc.identifier.idgrec512127cat
dc.identifier.issn0556-2821cat
dc.identifier.urihttps://hdl.handle.net/2445/12478
dc.language.isoengeng
dc.publisherThe American Physical Societyeng
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.47.4490cat
dc.relation.ispartofPhysical Review D, 1993, vol. 47, núm. 10, p. 4490-4497cat
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.47.4490
dc.rights(c) The American Physical Society, 1993
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject.classificationGeneral relativity (Physics)cat
dc.subject.classificationGravitaciócat
dc.subject.classificationMatèria interstel·larcat
dc.subject.classificationCosmologiacat
dc.subject.otherRelativitat general (Física)eng
dc.subject.otherGravitationeng
dc.subject.otherInterstellar mattereng
dc.subject.otherCosmologyeng
dc.titleDilaton quantum cosmology in two dimensionseng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersion

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