Models for the Brane-Bulk Interaction: Toward Understanding Braneworld Cosmological Perturbation

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dc.creatorBinetruy, Pierre
dc.creatorBucher, Martin
dc.creatorCarvalho, Carla
dc.date2004-03-15
dc.date.accessioned2026-07-07T11:32:16Z
dc.date.available2026-07-07T11:32:16Z
dc.descriptionUsing some simple toy models, we explore the nature of the brane-bulk interaction for cosmological models with a large extra dimension. We are in particular interested in understanding the role of the bulk gravitons, which from the point of view of an observer on the brane will appear to generate dissipation and nonlocality, effects which cannot be incorporated into an effective (3+1)-dimensional Lagrangian field theoretic description. We explicitly work out the dynamics of several discrete systems consisting of a finite number of degrees of freedom on the boundary coupled to a (1+1)-dimensional field theory subject to a variety of wave equations. Systems both with and without time translation invariance are considered and moving boundaries are discussed as well. The models considered contain all the qualitative feature of quantized linearized cosmological perturbations for a Randall-Sundrum universe having an arbitrary expansion history, with the sole exception of gravitational gauge invariance, which will be treated in a later paper.
dc.description47 pages, RevTeX (or Latex, etc) with 5 eps figures
dc.identifierhttps://arxiv.org/abs/hep-th/0403154
dc.identifierhttp://arxiv.org/abs/hep-th/0403154
dc.identifierPhys.Rev.D70:043509,2004
dc.identifierdoi:10.1103/PhysRevD.70.043509
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197536
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleModels for the Brane-Bulk Interaction: Toward Understanding Braneworld Cosmological Perturbation
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