Numerical gravitational backreaction on cosmic string loops from simulation

• DOI: 10.48550/arxiv.2411.10366
• Publication Date: 2024-11-15
• Authors: Jeremy M. Wachter; Ken D. Olum; José J. Blanco-Pi...; Vishnu R. Gade; Kirthivarsha Siva...
• Keywords: Cosmic string

We report on the results of performing computational gravitational backreaction cosmic string loops taken from a network simulation. The principal effect is to smooth out small-scale structure loops, which we demonstrate by various measures including average loop power spectrum and distribution kink angles loops. Backreaction does lead self-intersections in most cases, but these are typically small. An important discussed prior work rounding off kinks form cusps, find that cusps produced process very weak do not significantly contribute total gravitational-wave radiation loop. comment briefly extrapolating our as they would be found nature.