The causal order on the ambient boundary
High Energy Physics - Theory
2016-06-21 v1 General Relativity and Quantum Cosmology
Abstract
We analyse the causal structure of the ambient boundary, the conformal infinity of the ambient (Poincar\'e) metric. Using topological tools we show that the only causal relation compatible with the global topology of the boundary spacetime is the horismos order. This has important consequences for the notion of time in the conformal geometry of the ambient boundary.
Cite
@article{arxiv.1603.08117,
title = {The causal order on the ambient boundary},
author = {Ignatios Antoniadis and Spiros Cotsakis and Kyriakos Papadopoulos},
journal= {arXiv preprint arXiv:1603.08117},
year = {2016}
}
Comments
7 pages