The Ekpyrotic Universe: Colliding Branes and the Origin of the Hot Big Bang

Simple item page
dc.creatorKhoury, Justin
dc.creatorOvrut, Burt A.
dc.creatorSteinhardt, Paul J.
dc.creatorTurok, Neil
dc.date2001-03-29
dc.date2001-08-15
dc.date.accessioned2026-07-07T11:31:52Z
dc.date.available2026-07-07T11:31:52Z
dc.descriptionWe propose a cosmological scenario in which the hot big bang universe is produced by the collision of a brane in the bulk space with a bounding orbifold plane, beginning from an otherwise cold, vacuous, static universe. The model addresses the cosmological horizon, flatness and monopole problems and generates a nearly scale-invariant spectrum of density perturbations without invoking superluminal expansion (inflation). The scenario relies, instead, on physical phenomena that arise naturally in theories based on extra dimensions and branes. As an example, we present our scenario predominantly within the context of heterotic M-theory. A prediction that distinguishes this scenario from standard inflationary cosmology is a strongly blue gravitational wave spectrum, which has consequences for microwave background polarization experiments and gravitational wave detectors.
dc.description67 pages, 4 figures. v2,v3: minor corrections, references added
dc.identifierhttps://arxiv.org/abs/hep-th/0103239
dc.identifierhttp://arxiv.org/abs/hep-th/0103239
dc.identifierPhys.Rev.D64:123522,2001
dc.identifierdoi:10.1103/PhysRevD.64.123522
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197413
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Ekpyrotic Universe: Colliding Branes and the Origin of the Hot Big Bang
dc.typetext

Files

Collections

arXiv