Self-forces in the Spacetime of Multiple Cosmic Strings

TL;DR

This paper calculates the electromagnetic self-force on a linear current distribution in the spacetime of multiple cosmic strings, providing explicit solutions for certain configurations.

Contribution

It offers the first explicit solution for the electromagnetic self-force on a linear current in the spacetime of multiple cosmic strings.

Findings

Explicit solution for self-force when current is infinitely thin and aligned with strings

Demonstrates the effect of cosmic string spacetime on electromagnetic forces

Provides a foundation for studying electromagnetic phenomena near cosmic strings

Abstract

We calculate the electromagnetic self-force on a stationary linear distribution of four-current in the spacetime of multiple cosmic strings. It is shown that if the current is infinitely thin and stretched along a line which is parallel to the strings the problem admits an explicit solution.