Effects of anisotropic dynamics on cosmic strings

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.

The evolution of circular loops of a cosmic string with periodic tension

“…Having considered the dynamics of cosmic strings and cosmic string loops in anisotropic backgrounds, the authors of Ref. [24] show the imprint on a cosmic string network in the process before the universe got to isotrope during inflation. In a word once the cosmic strings formed, they evolve to generate the cosmic string loops inevitably, so the evolution and fate of cosmic string loops have attracted more attention.…”