# BPS Alice strings

## TL;DR

This paper constructs and analyzes a BPS-saturated Alice string in a specific gauge theory, demonstrating its properties and supersymmetry features through numerical solutions and theoretical embedding.

## Contribution

It introduces a new BPS Alice string solution in a $U(1) imes SO(3)$ gauge theory and shows it is half BPS in an embedded supersymmetric model.

## Key findings

- Found a BPS Alice string solution in the specified gauge theory.
- Numerically solved the BPS equations for the Alice string.
- Embedded the Alice string into an ${
m extbf{N}}=1$ supersymmetric theory to show it is half BPS.

## Abstract

When a charged particle encircles around an Alice string, it changes the sign of the electric charge. In this paper we find a BPS-saturated Alice string in $U(1)\times SO(3)$ gauge theory with charged complex scalar fields belonging to the vector representation. After performing BPS completion we solve the BPS equations numerically. We further embed the Alice string into an ${\cal N}=1$ supersymmetric gauge theory to show that it is half BPS.