出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The Möbius domain wall action [1] is a generalization of Shamir’s action, which gives exactly
the same overlap fermion lattice action as the separation (Ls ) between the domain walls is taken
to infinity. The performance advantages of the algorithm are presented for small ensembles of
quenched, full QCD domain wall and Gap domain wall lattices [2]. In particular, it is shown that
at the larger lattice spacings relevant to current dynamical simulations Möbius fermions work
well together with GapDWF, reducing Ls by more than a factor of two. It is noted that there is a
precise map between the domain wall and effective overlap action at finite quark mass including
finite Ls chiral violations so that the Ward-Takahashi identities for the axial and vector currents
are exactly equivalent in the two formulations.
