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arXiv · 1202.0719

Making sense of the bizarre behaviour of horizons in the McVittie spacetime

Valerio Faraoni·Andres F. Zambrano Moreno·Roshina Nandra
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Abstract

The bizarre behaviour of the apparent (black hole and cosmological) horizons of the McVittie spacetime is discussed using, as an analogy, the Schwarzschild-de Sitter-Kottler spacetime (which is a special case of McVittie anyway). For a dust-dominated "background" universe, a black hole cannot exist at early times because its (apparent) horizon would be larger than the cosmological(apparent) horizon. A phantom-dominated "background" universe causes this situation, and the horizon behaviour, to be time-reversed.

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Valerio Faraoni, Andres F. Zambrano Moreno, Roshina Nandra. 2012-02-03. Making sense of the bizarre behaviour of horizons in the McVittie spacetime. https://doi.org/10.1103/physrevd.85.083526

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