Second Randall-Sundrum brane world scenario with a nonminimally coupled bulk scalar field

Farakos, K; Pasipoularides, P

dc.contributor.author	Farakos, K	en
dc.contributor.author	Pasipoularides, P	en
dc.date.accessioned	2014-03-01T01:25:08Z
dc.date.available	2014-03-01T01:25:08Z
dc.date.issued	2006	en
dc.identifier.issn	1550-7998	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17550
dc.subject	Boundary Condition	en
dc.subject	Brane World	en
dc.subject	Einstein Equation	en
dc.subject	Parameter Space	en
dc.subject	Scalar Field	en
dc.subject	randall sundrum	en
dc.subject.classification	Astronomy & Astrophysics	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	COSMOLOGICAL-CONSTANT	en
dc.subject.other	EXTRA DIMENSION	en
dc.subject.other	LOCALIZATION	en
dc.subject.other	MILLIMETER	en
dc.subject.other	HIERARCHY	en
dc.title	Second Randall-Sundrum brane world scenario with a nonminimally coupled bulk scalar field	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevD.73.084012	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevD.73.084012	en
heal.identifier.secondary	084012	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	In our previous work of [K. Farakos and P. Pasipoularides, Phys. Lett. B 621, 224 (2005).] we studied the stability of the RS2 model with a nonminimally coupled bulk scalar field phi, and we found that in appropriate regions of xi the standard RS2 vacuum becomes unstable. The question that arises is whether there exists other new static stable solutions where the system can relax. In this work, by solving numerically the Einstein equations with the appropriate boundary conditions on the brane, we find that depending on the value of the nonminimal coupling xi, this model possesses three classes of new static solutions with different characteristics. We also examine what happens when the fine-tuning of the RS2 model is violated, and we obtain that these three classes of solutions are preserved in appropriate regions of the parameter space of the problem. The stability properties and possible physical implications of these new solutions are discussed in the main part of this paper. Especially in the case where xi=xi(c) (xi(c) is the five-dimensional conformal coupling) and the fine-tuning is violated, we obtain a physically interesting static stable solution.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	Physical Review D - Particles, Fields, Gravitation and Cosmology	en
dc.identifier.doi	10.1103/PhysRevD.73.084012	en
dc.identifier.isi	ISI:000237159600052	en
dc.identifier.volume	73	en
dc.identifier.issue	8	en