# Topological Properties of the Chiral Magnetic Effect in Multi-Weyl Semimetals

## TL;DR

This paper analyzes the topological characteristics of the chiral magnetic effect in multi-Weyl semimetals with nonlinear dispersion, proposing experimental methods to measure their monopole charges through dynamic CME behavior.

## Contribution

It extends the computation of the chiral magnetic effect to multi-Weyl semimetals with nonlinear dispersion and explores their topological properties under dynamic magnetic fields.

## Key findings

- Topological properties of CME in multi-Weyl semimetals are characterized.
- Dynamic CME can reveal the monopole charge in multi-Weyl semimetals.
- An experimental setup is proposed to measure monopole charges via CME.

## Abstract

We compute the chiral magnetic effect (CME) in multi-Weyl semimetals (multi-WSMs) based on the chiral kinetic theory. Multi-WSMs are WSMs with multiple monopole charges that have nonlinear and anisotropic dispersion relations near Weyl points, and we need to extend conventional computation of CME in WSMs with linear dispersion relations. Topological properties of CME in multi-WSMs are investigated in details for not only static magnetic fields but also time-dependent (dynamic) ones. We propose an experimental setup to measure the multiple monopole charge via the topological nature hidden in the dynamic CME.