Do Global String Loops Collapse to Form Black Holes?
高能物理 - 理论
2009-10-22 v1 高能物理 - 唯象学
摘要
Hawking has shown that the emission of gravitational radiation cannot prevent circular loops of gauged cosmic strings from collapsing into black holes. Here we consider the corresponding question for global strings: can Goldstone boson emission prevent circular loops of global cosmic strings from forming black holes? Our results show that for every value of the string tension there is a certain critical size below which the circular loop does not collapse to form a black hole. For GUT scale strings, this critical size is much larger than the current horizon.
引用
@article{arxiv.hep-th/9305081,
title = {Do Global String Loops Collapse to Form Black Holes?},
author = {Joaquim Fort and Tanmay Vachaspati},
journal= {arXiv preprint arXiv:hep-th/9305081},
year = {2009}
}
备注
10pp, 3 figures available on request, plain TeX (no macros needed), to be published in Phys. Lett. B