RANDALL–SUNDRUM BRANE COSMOLOGY: MODIFICATION OF LATE-TIME COSMIC DYNAMICS BY EXOTIC MATTER

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Campo DC	Valor	Lengua/Idioma
dc.creator	GARCIA SALCEDO, RICARDO	-
dc.creator	GONZALEZ, TAME	-
dc.creator	MORENO, CLAUDIA	-
dc.creator	QUIROS, ISRAEL	-
dc.date	2012-03-28T21:34:29Z	-
dc.date	2012-03-28T21:34:29Z	-
dc.date	2011	-
dc.date.accessioned	2013-01-16T15:17:53Z	-
dc.date.available	2013-01-16T15:17:53Z	-
dc.date.issued	2013-01-16	-
dc.identifier	0022-3689	-
dc.identifier	http://hdl.handle.net/123456789/937	-
dc.identifier.uri	http://www.repositoriodigital.ipn.mx/handle/123456789/11422	-
dc.description	In this paper we show, through the study of concrete examples, that depending on the cosmic dynamics of the energy density of matter degrees of freedom living in the brane, Randall–Sundrum (RS) brane effects can be important not only at short distances (UV regime), but also at large cosmological scales (IR regime). Our first example relies on the study, by means of the dynamical system tools, of a toy model based in a nonlinear electrodynamics (NLED) Lagrangian. Then we show that other, less elaborated models, such as the inclusion of a scalar phantom field, and of a tachyon phantom field—trapped in the brane—produce similar results. The form of the RS correction seems to convert what would have been future attractors in general relativity into saddle points. The above ‘mixing of scales’ effect is distinctive only of theories that modify the right-hand side (matter part) of the Friedmann equation, so that, for instance, Dvali–Gabadadze–Porrati-brane models do not show this feature.	-
dc.description	Centro de Investigacion en Ciencia Aplicada y Tecnologia Avanzada Legaria del IPN. Departamento de Fısica, Centro de Investigacion y de Estudios Avanzadas del IPN. Departamento de Fısica y Matematicas, Centro Universitario de Ciencias Exactas e Ingenierıas, Universidad de Guadalajara. Division de Ciencias e Ingenierıa de la Universidad de Guanajuato.	-
dc.language	en	-
dc.publisher	IOP PUBLISHING CLASSICAL AND QUANTUM GRAVITY	-
dc.relation	Class. Quantum Grav.;28 (2011)	-
dc.subject	Cosmology	-
dc.subject	LATE-TIME COSMIC	-
dc.subject	EXOTIC MATTER	-
dc.title	RANDALL–SUNDRUM BRANE COSMOLOGY: MODIFICATION OF LATE-TIME COSMIC DYNAMICS BY EXOTIC MATTER	-
dc.type	Article	-
Aparece en las colecciones:	Doctorado

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