出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The rational hybrid Monte Carlo algorithm and Hasenbusch mass preconditioning provide dramatic
reductions in the computer time required to generate an ensemble of lattice configurations
which include the effects of dynamical quarks. In fact, the advantage over earlier methods grows
rapidly as the mass of the lightest quarks decreases. We present theoretical estimates for the dependence
of the computer requirements for simulations using these new methods on the quark
mass, lattice spacing and volume. Comparisons are made with the performance found in 2+1
flavor domain wall fermion simulations using lattice spacings of 0.114 and 0.086 fm and quark
masses as small as 1/5 of the strange quark mass.
