Charged Cosmic String Nucleation in de Sitter Space

TL;DR

This paper studies the quantum creation of charged cosmic string pairs in de Sitter space, analyzing the potential barrier and tunneling probability, and exploring their subsequent classical evolution.

Contribution

It introduces a model incorporating self-gravity to compute nucleation rates and examines the post-nucleation dynamics of charged circular strings.

Findings

Calculated the potential energy barrier for string nucleation.

Estimated the quantum tunneling probability in de Sitter space.

Analyzed the classical evolution of charged strings after nucleation.

Abstract

We investigate the quantum nucleation of pairs of charged circular cosmic strings in de Sitter space. By including self-gravity we obtain the classical potential energy barrier and compute the quantum mechanical tunneling probability in the semiclassical approximation. We also discuss the classical evolution of charged circular strings after their nucleation.