Stability of Sigma-Model Strings and Textures

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.

9 pages, to be published in Classical and Quantum Gravity

Cited by in corpus (4)

• Thermal Stabilisation of Superconducting Sigma Strings and their Drum Vortons
• External stability for Spherically Symmetric Solutions in Lorentz Breaking Massive Gravity
• Topological Q-Solitons
• Non-Singular Stationary Global Strings