Over-Improved Stout-Link Smearing

TL;DR

This paper introduces an over-improved stout-link smearing algorithm that stabilizes instanton-like objects and compares it with existing methods using topological charge calculations and visualizations.

Contribution

It presents a novel over-improved smearing technique and a method for selecting the over-improvement parameter, enhancing the stability of instanton-like structures.

Findings

The new algorithm stabilizes instanton-like objects effectively.

Comparison shows improved performance over original stout-link smearing.

Visualizations confirm better topological charge density preservation.

Abstract

A new over-improved stout-link smearing algorithm, designed to stabilise instanton-like objects, is presented. A method for quantifying the selection of the over-improvement parameter, $\epsilon$, is demonstrated. The new smearing algorithm is compared with the original stout-link smearing, and Symanzik improved smearing through calculations of the topological charge and visualisations of the topological charge density.