How much energy do closed timelike curves in 2+1 spacetimes need?
General Relativity and Quantum Cosmology
2009-12-30 v1
Abstract
By noticing that, in open 2+1 gravity, polarized surfaces cannot converge in the presence of timelike total energy momentum (except for a rotation of 2 pi), we give a simple argument which shows that, quite generally, closed timelike curves cannot exist in the presence of such energy condition.
Keywords
Cite
@article{arxiv.gr-qc/0001086,
title = {How much energy do closed timelike curves in 2+1 spacetimes need?},
author = {Manuel H. Tiglio},
journal= {arXiv preprint arXiv:gr-qc/0001086},
year = {2009}
}
Comments
3 pages, with no figures. Accepted in PRD as Rapid Communication