Λ = 0 cosmology of a brane-like universe

Aharon Davidson

doi:10.1088/0264-9381/16/3/003

Λ = 0 cosmology of a brane-like universe

Aharon Davidson

Department of Physics

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39 Scopus citations

Abstract

We examine the possibility that Friedman-Robertson-Walker evolution is governed by an effective (rather than by the actual) energy density. A concrete example is provided by Λ = 0 Regge-Teitelboim cosmology, where critical cosmology only requires subcritical matter density (Ω_matter < 1), and the age of a flat matter-dominated universe gets enhanced by a factor of 9/8. Dual to the mature dilute universe is the embryo universe, the evolution of both is governed by P_eff = - 1/9 ρ_eff.

Original language	English
Pages (from-to)	653-659
Number of pages	7
Journal	Classical and Quantum Gravity
Volume	16
Issue number	3
DOIs	https://doi.org/10.1088/0264-9381/16/3/003
State	Published - 1 Mar 1999

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1088/0264-9381/16/3/003

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title = "Λ = 0 cosmology of a brane-like universe",

abstract = "We examine the possibility that Friedman-Robertson-Walker evolution is governed by an effective (rather than by the actual) energy density. A concrete example is provided by Λ = 0 Regge-Teitelboim cosmology, where critical cosmology only requires subcritical matter density (Ωmatter < 1), and the age of a flat matter-dominated universe gets enhanced by a factor of 9/8. Dual to the mature dilute universe is the embryo universe, the evolution of both is governed by Peff = - 1/9 ρeff.",

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AB - We examine the possibility that Friedman-Robertson-Walker evolution is governed by an effective (rather than by the actual) energy density. A concrete example is provided by Λ = 0 Regge-Teitelboim cosmology, where critical cosmology only requires subcritical matter density (Ωmatter < 1), and the age of a flat matter-dominated universe gets enhanced by a factor of 9/8. Dual to the mature dilute universe is the embryo universe, the evolution of both is governed by Peff = - 1/9 ρeff.

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Λ = 0 cosmology of a brane-like universe

Abstract

ASJC Scopus subject areas

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