Timo Eichhorn (University of Wuppertal)
At fine lattice spacings, lattice simulations are plagued by slow (topological) modes that give rise to large autocorrelation times. These in turn lead to statistical and systematic errors that are difficult to estimate. We study the problem and possible algorithmic solutions in 4-dimensional SU(3) gauge theory, with special focus on instanton updates and metadynamics.
Christian Hoelbling Timo Eichhorn (University of Wuppertal) Mr Philip Rouenhoff (University of Wuppertal)