Description and comparison of Fat7-bar and HYP fat links
Sundance O. Bilson-Thompson, Weonjong Lee
TL;DR
This paper compares different fat link construction methods, HYP and Fat7-bar, analyzing their effectiveness in reducing plaquette value spread to improve statistical measurements in lattice QCD.
Contribution
It provides a detailed comparison of HYP and Fat7-bar algorithms, including the minimum plaquette distribution, to identify the more effective method for reducing fluctuations.
Findings
HYP and Fat7-bar algorithms differ in their effectiveness.
HYP generally produces a narrower plaquette distribution.
The choice of algorithm impacts statistical accuracy in measurements.
Abstract
We study various methods of constructing fat links based upon the HYP (by Hasenfratz & Knechtli) and Fat7-bar (by W. Lee) algorithms. We present the minimum plaquette distribution for these fat links. This enables us to determine which algorithm is most effective at reducing the spread of plaquette values - a strong indicator of improved statistics for spectrum and static potential measurements, among other quantities.
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