Möbius Algorithm for Domain Wall and GapDW Fermions

Brower, Richard C, Babich, Ronald, Orginos, Kostas, Rebbi, Claudio, Schaich, David and Vranas, Pavlos
(2009) Möbius Algorithm for Domain Wall and GapDW Fermions. In: The XXVI International Symposium on Lattice Field Theory, 2008-7-14 - ?.

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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.

Item Type: Conference or Workshop Item (Unspecified)
Depositing User: Symplectic Admin
Date Deposited: 13 Mar 2020 14:26
Last Modified: 18 Jan 2023 23:57
DOI: 10.22323/1.066.0034
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3078906