Large N reduction with overlap fermions

TL;DR

This paper revisits the concept of large N reduction in gauge theories and demonstrates how the use of overlap fermions can resolve longstanding issues in the approach.

Contribution

It introduces the application of the overlap Dirac operator to quenched reduction, providing a solution to previous problems encountered in the method.

Findings

Overlap fermions improve the validity of large N reduction.

Old problems in quenched reduction are mitigated with the overlap Dirac operator.

The approach offers a more consistent framework for large N gauge theories.

Abstract

We revisit quenched reduction with fermions and explain how some old problems can be avoided using the overlap Dirac operator.