Pauli's Term and Fractional Spin

TL;DR

This paper demonstrates that a Pauli-type coupling in an Abelian Chern-Simons-Higgs model can generate fractional spin, highlighting a novel mechanism for fractionalization in gauge theories.

Contribution

It introduces a non-minimal Pauli coupling in the model as a new way to produce fractional spin in gauge field theories.

Findings

Pauli coupling induces fractional spin in the model

Fractional spin arises without additional topological terms

Provides a new perspective on fractionalization mechanisms

Abstract

In this work we consider an Abelian Chern-Simons-Higgs model coupled non-minimally to matter fields. This coupling is implemented by means of a Pauli-type coupling. We show that the Pauli term is sufficient to gives rise to fractional spin.