出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：HMC histories for light dynamical overlap fermions tend to stay in a fixed topological sector for
many trajectories, so that the different sectors are not sampled properly. Therefore the suitable
summation of observables, which have been measured in separate sectors, is a major challenge.
We explore several techniques for this issue, based on data for the chiral condensate and the
(analogue of the) pion mass in the 2-flavour Schwinger model with dynamical overlap-hypercube
fermions.
