Link smearing considered as MCRG transformation
High Energy Physics - Lattice
2011-05-03 v2
Abstract
Gauge link smearing is widely used in lattice QCD computations. The idea is to remove the local (UV) fluctuations of the gauge field configurations while keeping the longer-range (IR) properties intact. Important applications are in the definitions of interpolating hadron operators as well as in updating the gauge field configurations with dynamical quarks in the so-called Hybrid Monte Carlo (HMC) algorithm. Here we study the effectiveness of various smearing methods and try to quantify these with tools known from Monte Carlo Renormalization Group (MCRG).
Cite
@article{arxiv.1103.5368,
title = {Link smearing considered as MCRG transformation},
author = {F. Geles and C. B. Lang},
journal= {arXiv preprint arXiv:1103.5368},
year = {2011}
}
Comments
6 pages, 3 figures; minor corrections