Ambient cosmology and spacetime singularities

作者:Antoniadis Ignatios*; Cotsakis Spiros
来源:European Physical Journal C, 2015, 75(1): 35.
DOI:10.1140/epjc/s10052-015-3269-0

摘要

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.

  • 出版日期2015-1-28