We study the efficiency of an improved Multiboson algorithm with two flavours of Wilson fermions in a realistic physical situation (β=5.60, κ=0.156 on a 163×24 lattice). The performance of this exact algorithm is compared with that of a state-of-the-art HMC algorithm: a considerable improvement is obtained for the plaquette auto-correlation time, while the two algorithms appear similarly efficient at decorrelating the topological charge.
@article{arxiv.hep-lat/9906029,
title = {Efficiency of the UV-filtered Multiboson algorithm},
author = {C. Alexandrou and Ph. de Forcrand and M. D'Elia and H. Panagopoulos},
journal= {arXiv preprint arXiv:hep-lat/9906029},
year = {2009}
}