Highly-improved lattice field-strength tensor
High Energy Physics - Lattice
2010-03-04 v1
Abstract
We derive an O(a^4)-improved lattice version of the continuum field-strength tensor. Discretization errors are reduced via the combination of several clover terms of various sizes, complemented by tadpole improvement. The resulting improved field-strength tensor is used to construct O(a^4)-improved topological charge and action operators. We compare the values attained by these operators as we cool several configurations to self-duality with a previously defined highly-improved action and assess the relative scale of the remaining discretization errors.
Cite
@article{arxiv.hep-lat/0203008,
title = {Highly-improved lattice field-strength tensor},
author = {S. O. Bilson-Thompson and D. B. Leinweber and A. G. Williams},
journal= {arXiv preprint arXiv:hep-lat/0203008},
year = {2010}
}
Comments
22 pages, 7 postscript figures