Massive gravity with anisotropic scaling

Cuadros-Melgar, B; Papantonopoulos, E; Tsoukalas, M; Zamarias, V

dc.contributor.author	Cuadros-Melgar, B	en
dc.contributor.author	Papantonopoulos, E	en
dc.contributor.author	Tsoukalas, M	en
dc.contributor.author	Zamarias, V	en
dc.date.accessioned	2014-03-01T02:09:30Z
dc.date.available	2014-03-01T02:09:30Z
dc.date.issued	2012	en
dc.identifier.issn	15507998	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29860
dc.title	Massive gravity with anisotropic scaling	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevD.85.124035	en
heal.identifier.secondary	124035	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevD.85.124035	en
heal.publicationDate	2012	en
heal.abstract	We study a massive gravity theory which is Lorentz-violating all the way from ultraviolet to infrared energy scales. At short distances the theory breaks diffeomorphism invariance and time and space scale differently. Dynamical metric fields are introduced which, upon linearization over a Minkowski background, correspond to Lorentz-violating mass terms at large distances. We perform a scalar perturbation analysis and we show that with an appropriate choice of parameters, the theory is healthy without ghosts, tachyons, strong coupling problems, and instabilities. © 2012 American Physical Society.	en
heal.journalName	Physical Review D - Particles, Fields, Gravitation and Cosmology	en
dc.identifier.doi	10.1103/PhysRevD.85.124035	en
dc.identifier.volume	85	en
dc.identifier.issue	12	en