Stability of Sigma-Model Strings and Textures
General Relativity and Quantum Cosmology
2010-04-06 v1
Abstract
In flat space-time, sigma-model strings and textures are both unstable to collapse and subsequent decay. With sufficient cosmological expansion, however, they are stable in a generalized sense: a small perturbation will cause them to change their shape, but they do not decay. The current rate of expansion is sufficient to stabilize strings, but not textures.
Keywords
Cite
@article{arxiv.gr-qc/0201042,
title = {Stability of Sigma-Model Strings and Textures},
author = {R. S. Ward},
journal= {arXiv preprint arXiv:gr-qc/0201042},
year = {2010}
}
Comments
9 pages, to be published in Classical and Quantum Gravity