Causal Structure of an Inflating Magnetic Monopole
General Relativity and Quantum Cosmology
2009-10-31 v2 Astrophysics
High Energy Physics - Phenomenology
Abstract
We clarify the causal structure of an inflating magnetic monopole. The spacetime diagram shows explicitly that this model is free from ``graceful exit'' problem, while the monopole itself undergoes ``eternal inflation''. We also discuss general nature of inflationary spacetimes.
Cite
@article{arxiv.gr-qc/9909027,
title = {Causal Structure of an Inflating Magnetic Monopole},
author = {Nobuyuki Sakai and Ken-ichi Nakao and Tomohiro Harada},
journal= {arXiv preprint arXiv:gr-qc/9909027},
year = {2009}
}
Comments
6 pages (text), revtex, 5 ps figures separate, to appear in Phys Rev D, Fig 3 and discussions are modified