Testing the event-chain algorithm in asymptotically free models

Abstract

We apply the event-chain algorithm proposed by Bernard et al. in 2009 to toy models of lattice QCD. We give a formal proof of stability of the algorithm. We study its performance at the example of the massive Gaussian model on the square and the simple cubic lattice, the O(3)-invariant nonlinear σ-model on the square lattice, and the SU(3)×SU(3) principal chiral model on the square lattice. In all these cases we find that critical slowing down is essentially eliminated.