Induced cosmological constant and other features of asymmetric brane embedding

Simple item page
dc.creatorShtanov, Yuri
dc.creatorSahni, Varun
dc.creatorShafieloo, Arman
dc.creatorToporensky, Alexey
dc.date2009-01-20
dc.date2009-04-06
dc.date.accessioned2026-07-07T13:07:45Z
dc.date.available2026-07-07T13:07:45Z
dc.descriptionWe investigate the cosmological properties of an "induced gravity" brane scenario in the absence of mirror symmetry with respect to the brane. We find that brane evolution can proceed along one of four distinct branches. By contrast, when mirror symmetry is imposed, only two branches exist, one of which represents the self-accelerating brane, while the other is the so-called normal branch. This model incorporates many of the well-known possibilities of brane cosmology including phantom acceleration (w < -1), self-acceleration, transient acceleration, quiescent singularities, and cosmic mimicry. Significantly, the absence of mirror symmetry also provides an interesting way of inducing a sufficiently small cosmological constant on the brane. A small (positive) Lambda-term in this case is induced by a small asymmetry in the values of bulk fundamental constants on the two sides of the brane.
dc.description17 pages, 4 figures. New results and two figures discussing transient acceleration are included. Version accepted for publication in JCAP
dc.identifierhttps://arxiv.org/abs/0901.3074
dc.identifierhttp://arxiv.org/abs/0901.3074
dc.identifierJCAP 04 (2009) 023
dc.identifierdoi:10.1088/1475-7516/2009/04/023
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/228192
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectCosmology and Nongalactic Astrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleInduced cosmological constant and other features of asymmetric brane embedding
dc.typetext

Files

Collections

arXiv