出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The Hypercube operator determines a variant of the approximate, truncated perfect fermion action.
In this pilot study we are going to report on first experiences in dynamical QCD simulations
with the Hypercube fermions. We apply this formulation in an investigation of the finite temperature
transition for two flavours. On lattices of size 83×4 we explore the phase diagram. Physical
scales are estimated from pseudoscalar and vector meson masses obtained on 83×16 lattices. We
observe the presence of a metastability region but do not find evidence for an Aoki phase. The
Hypercube operator allows us to simulate at ratios of pseudoscalar to vector meson masses at least
as small as 0.8 at the thermal crossover at Nt = 4, which renders this formulation cheaper than the
Wilson like fermions.
