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Λ=0 Cosmology of a Brane-like Universe

Aharon Davidson
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Abstract

We examine the possibility that Friedman-Robertson-Walker evolution is governed by an effective (rather then by the actual) energy density. A concrete example is provided by $Λ=0$ Regge-Teitelboim cosmology, where critical cosmology only requires subcritical matter density $(Ω_{m}<1)$, 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 $P_{eff}=-{1/9}ρ_{eff}$.

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Aharon Davidson. 1999-01-02. Λ=0 Cosmology of a Brane-like Universe. https://doi.org/10.1088/0264-9381%2F16%2F3%2F003

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