Anisotropic extra dimensions

Papantonopoulos, E; Papazoglou, A; Tsoukalas, M

dc.contributor.author	Papantonopoulos, E	en
dc.contributor.author	Papazoglou, A	en
dc.contributor.author	Tsoukalas, M	en
dc.date.accessioned	2014-03-01T01:35:18Z
dc.date.available	2014-03-01T01:35:18Z
dc.date.issued	2011	en
dc.identifier.issn	1550-7998	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20991
dc.subject	Cosmological Constant	en
dc.subject	Extra Dimension	en
dc.subject	Spectrum	en
dc.subject	randall sundrum	en
dc.subject.classification	Astronomy & Astrophysics	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	VELTMAN-ZAKHAROV DISCONTINUITY	en
dc.subject.other	GRAVITATIONAL HIGGS MECHANISM	en
dc.subject.other	DARK ENERGY	en
dc.subject.other	GRAVITY	en
dc.subject.other	MASS	en
dc.subject.other	MILLIMETER	en
dc.subject.other	HIERARCHY	en
dc.subject.other	FIELDS	en
dc.subject.other	SPACE	en
dc.title	Anisotropic extra dimensions	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevD.84.025016	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevD.84.025016	en
heal.identifier.secondary	025016	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	We consider the scenario where, in a five-dimensional theory, the extra spatial dimension has different scaling than the other four dimensions. We find background maximally symmetric solutions, when the bulk is filled with a cosmological constant and at the same time it has a three-brane embedded in it. These background solutions are reminiscent of Randall-Sundrum warped metrics, with bulk curvature depending on the parameters of the breaking of diffeomorphism invariance. Subsequently, we consider the scalar perturbation sector of the theory and show that it has certain pathologies and the striking feature that in the limit where the diffeomorphism invariance is restored, there remain ghost scalar mode(s) in the spectrum. © 2011 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.84.025016	en
dc.identifier.isi	ISI:000292875600008	en
dc.identifier.volume	84	en
dc.identifier.issue	2	en