Optimizing the Chiral Properties of Lattice Fermion Actions

TL;DR

This paper proposes an optimization method for lattice fermion actions to improve chiral properties, identifying a specific candidate action with favorable scaling and spectral characteristics.

Contribution

It introduces a new approach to optimize chiral behavior in Wilson-type lattice fermions and identifies a candidate action with improved properties.

Findings

The candidate action exhibits good scaling behavior.

Spectroscopy and matrix element calculations support the effectiveness.

Optimized eigenmodes correlate with improved chiral properties.

Abstract

We describe a way to optimize the chiral behavior of Wilson-type lattice fermion actions by studying the low energy real eigenmodes of the Dirac operator. We find a candidate action, the clover action with fat links with a tuned clover term. We present a calculation of spectroscopy and matrix elements at Wilson gauge coupling $\beta=5.7$. The action shows good scaling behavior.