Study of Critical Slowing-Down in $SU(2)$ Landau Gauge Fixing
  We study the problem of critical slowing-down for gauge-fixing algorithms (Landau gauge) in $SU(2)$ lattice gauge theory on $2$ and $4$ dimensional lattices, both numerically and analytically. We consider five such algorithms, and we measure four different observables. A detailed discussion and analysis of the tuning of these algorithms is also presented. 
Attilio Cucchieri and Tereza Mendes (New York University)