Improved Landau Gauge Fixing and Discretisation Errors
arXiv:hep-lat/9909110 · doi:10.1016/S0920-5632(00)91841-3
Abstract
Lattice discretisation errors in the Landau gauge condition are examined. An improved gauge fixing algorithm in which order a^2 errors are removed is presented. Order a^2 improvement of the gauge fixing condition displays the secondary benefit of reducing the size of higher-order errors. These results emphasise the importance of implementing an improved gauge fixing condition.
LATTICE99 (Improvement and Renormalization), 3 pages, 1 figure