Relativistic quantum gravity at a Lifshitz point

Germani, C; Kehagias, A; Sfetsos, K

dc.contributor.author	Germani, C	en
dc.contributor.author	Kehagias, A	en
dc.contributor.author	Sfetsos, K	en
dc.date.accessioned	2014-03-01T01:31:47Z
dc.date.available	2014-03-01T01:31:47Z
dc.date.issued	2009	en
dc.identifier.issn	1126-6708	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19928
dc.subject	Classical theories of gravity	en
dc.subject	Models of quantum gravity	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	RENORMALIZATION	en
dc.title	Relativistic quantum gravity at a Lifshitz point	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/1126-6708/2009/09/060	en
heal.identifier.secondary	http://dx.doi.org/10.1088/1126-6708/2009/09/060	en
heal.identifier.secondary	060	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	We show that the Hoava theory for the completion of General Relativity at UV scales can be interpreted as a gauge fixed Tensor-Vector theory, and it can be extended to an invariant theory under the full group of four-dimensional diffeomorphisms. In this respect, although being fully relativistic, it results to be locally anisotropic in the time-like and space-like directions defined by a family of irrotational observers. We show that this theory propagates generically three degrees of freedom: two of them are related to the four-dimensional diffeomorphism invariant graviton (the metric) and one is related to a propagating scalar mode of the vector. Finally, we note that in the present formulation, matter can be consistently coupled to gravity. © SISSA 2009.	en
heal.publisher	INT SCHOOL ADVANCED STUDIES	en
heal.journalName	Journal of High Energy Physics	en
dc.identifier.doi	10.1088/1126-6708/2009/09/060	en
dc.identifier.isi	ISI:000270667600060	en
dc.identifier.volume	2009	en
dc.identifier.issue	9	en