Effects of anisotropic dynamics on cosmic strings

TL;DR

This paper investigates how anisotropic backgrounds influence the behavior of cosmic strings, including their perturbations and potential observational signatures, providing insights into early universe conditions.

Contribution

It introduces a detailed analysis of cosmic string dynamics in anisotropic spacetimes, extending previous isotropic models and exploring observational implications.

Findings

Anisotropic backgrounds alter cosmic string evolution.

Perturbation behavior differs from isotropic cases.

Potential observational signatures of anisotropy are discussed.

Abstract

The dynamics of cosmic strings is considered in anisotropic backgrounds. In particular, the behaviour of infinitely long straight cosmic strings and of cosmic string loops is determined. Small perturbations of a straight cosmic string are calculated. The relevance of these results is discussed with respect to the possible observational imprints of an anisotropic phase on the behaviour of a cosmic string network.