arXiv:gr-qc/9909027·v2·General Relativity and Quantum Cosmology
Causal Structure of an Inflating Magnetic Monopole
Nobuyuki Sakai (YITP, Kyoto U.)🇯🇵 · Ken-ichi Nakao (Osaka City U.)🇯🇵 · Tomohiro Harada (Kyoto U.)🇯🇵
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.
Comments: 6 pages (text), revtex, 5 ps figures separate, to appear in Phys Rev D, Fig 3 and discussions are modified