Unavoidable conflict between massive gravity models and massive topological terms

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAccioly, A.
dc.creatorDias, M.
dc.date2014-05-20T14:07:28Z
dc.date2016-10-25T17:12:47Z
dc.date2014-05-20T14:07:28Z
dc.date2016-10-25T17:12:47Z
dc.date2004-04-10
dc.date.accessioned2017-04-05T21:41:39Z
dc.date.available2017-04-05T21:41:39Z
dc.identifierModern Physics Letters A. Singapore: World Scientific Publ Co Pte Ltd, v. 19, n. 11, p. 817-826, 2004.
dc.identifier0217-7323
dc.identifierhttp://hdl.handle.net/11449/23688
dc.identifierhttp://acervodigital.unesp.br/handle/11449/23688
dc.identifier10.1142/S0217732304013362
dc.identifierWOS:000221066800004
dc.identifierhttp://dx.doi.org/10.1142/S0217732304013362
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/868766
dc.descriptionMassive gravity models in (2 + 1) dimensions, such as those obtained by adding to Einstein's gravity the usual Fierz-Pauli, or the more complicated Ricci scalar squared (R-2), terms, are tree level unitary. Interesting enough these seemingly harmless systems have their unitarity spoiled when they are augmented by a Chern-Simons term. Furthermore, if the massive topological term is added to R + R-munu(2) gravity, or to R + R-munu(2), + R-2 gravity (higher-derivative gravity), which are nonunitary at the tree level, the resulting models remain nonunitary. Therefore, unlike the common belief, as well as the claims in the literature, the coexistence between three-dimensional massive gravity models and massive topological terms is conflicting.
dc.languageeng
dc.publisherWorld Scientific Publ Co Pte Ltd
dc.relationModern Physics Letters A
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectmassive gravity models
dc.subjecttopological terms
dc.subjecttree unitarity
dc.titleUnavoidable conflict between massive gravity models and massive topological terms
dc.typeOtro


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