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Matching Radiation-Dominated and Matter-Dominated Einstein-de Sitter Universes and an Application for Primordial Black Holes in Evolving Cosmological Backgrounds (2006)
BibTeX
@MISC{06matchingradiation-dominated,
author = {},
title = {Matching Radiation-Dominated and Matter-Dominated Einstein-de Sitter Universes and an Application for Primordial Black Holes in Evolving Cosmological Backgrounds},
year = {2006}
}
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Abstract
Abstract By matching across a surface of constant time, it is demon-strated that the spacetime for a radiation-dominated Einstein-de Sitter universe can be directly matched to the spacetime for a matter-dominated Einstein-de Sitter universe. Thus, this can serve as a model of a universe filled with radiation that suddenly is converted to matter and antimatter, or a universe filled with matter and antimatter that suddenly annihilates to leave radiation. This matching is shown to hold for asymptotically Einstein-de Sitter cosmological black hole spacetimes, yielding simplistic models of primordial black holes that evolve between being in radiation-dominated universes and matter-dominated universes.
