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Path integral measure, constraints and ghosts for massive gravitons with a cosmological constant

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dc.contributor.author Metaxas, D en
dc.date.accessioned 2014-03-01T01:31:37Z
dc.date.available 2014-03-01T01:31:37Z
dc.date.issued 2009 en
dc.identifier.issn 1550-7998 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/19855
dc.subject Cosmological Constant en
dc.subject Path Integral en
dc.subject Point of View en
dc.subject De Sitter en
dc.subject.classification Astronomy & Astrophysics en
dc.subject.classification Physics, Particles & Fields en
dc.subject.other VELTMAN-ZAKHAROV DISCONTINUITY en
dc.subject.other QUANTUM-GRAVITY en
dc.subject.other FIELD-THEORY en
dc.subject.other STABILITY en
dc.subject.other SPACE en
dc.subject.other NO en
dc.title Path integral measure, constraints and ghosts for massive gravitons with a cosmological constant en
heal.type journalArticle en
heal.identifier.primary 10.1103/PhysRevD.80.124029 en
heal.identifier.secondary http://dx.doi.org/10.1103/PhysRevD.80.124029 en
heal.identifier.secondary 124029 en
heal.language English en
heal.publicationDate 2009 en
heal.abstract For massive gravity in a de Sitter background one encounters problems of stability when the curvature is larger than the graviton mass. I analyze this situation from the path integral point of view and show that it is related to the conformal factor problem of Euclidean quantum (massless) gravity. When a constraint for massive gravity is incorporated and the proper treatment of the path integral measure is taken into account one finds that, for particular choices of the DeWitt metric on the space of metrics (in fact, the same choices as in the massless case), one obtains the opposite bound on the graviton mass. © 2009 The American Physical Society. en
heal.publisher AMER PHYSICAL SOC en
heal.journalName Physical Review D - Particles, Fields, Gravitation and Cosmology en
dc.identifier.doi 10.1103/PhysRevD.80.124029 en
dc.identifier.isi ISI:000273233300098 en
dc.identifier.volume 80 en
dc.identifier.issue 12 en


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