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arXiv · 1409.2220

Ambient cosmology and spacetime singularities

Ignatios Antoniadis·Spiros Cotsakis
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Abstract

We present a new approach to the issues of spacetime singularities and cosmic censorship in general relativity. This is based on the idea that standard 4-dimensional spacetime is the conformal infinity of an ambient metric for the 5-dimensional Einstein equations with fluid sources. We then find that the existence of spacetime singularities in four dimensions is constrained by asymptotic properties of the ambient 5-metric, while the non-degeneracy of the latter crucially depends on cosmic censorship holding on the boundary.

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Ignatios Antoniadis, Spiros Cotsakis. 2015-01-13. Ambient cosmology and spacetime singularities. https://doi.org/10.1140/epjc%2Fs10052-015-3269-0

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