A 6-D Brane World Model

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dc.creatorKanti, Panagiota
dc.creatorMadden, Richard
dc.creatorOlive, Keith A.
dc.date2001-04-20
dc.date.accessioned2026-07-07T10:53:33Z
dc.date.available2026-07-07T10:53:33Z
dc.descriptionWe consider a 6D space-time which is periodic in one of the extra dimensions and compact in the other. The periodic direction is defined by two 4-brane boundaries. Both static and non-static exact solutions, in which the internal spacetime has constant radius of curvature, are derived. In the case of static solutions, the brane tensions must be tuned as in the 5D Randall-Sundrum model, however, no additional fine-tuning is necessary between the brane tensions and the bulk cosmological constant. By further relaxing the sole fine-tuning of the model, we derive non-static solutions, describing de Sitter or Anti de Sitter 4D spacetimes, that allow for the fixing of the inter-brane distance and the accommodation of pairs of positive-negative and positive-positive tension branes. Finally, we consider the stability of the radion field in these configurations by employing small, time-dependent perturbations around the background solutions. In analogy with results drawn in 5 dimensions, the solutions describing a de Sitter 4D spacetime turn out to be unstable while those describing an Anti de Sitter geometry are shown to be stable.
dc.description22 pages, LaTeX file, no figures
dc.identifierhttps://arxiv.org/abs/hep-th/0104177
dc.identifierhttp://arxiv.org/abs/hep-th/0104177
dc.identifierPhys.Rev.D64:044021,2001
dc.identifierdoi:10.1103/PhysRevD.64.044021
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185523
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA 6-D Brane World Model
dc.typetext

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