Recent Developments of Domain-wall/Overlap Fermions for Lattice QCD

Abstract

I review the lattice formulations of vector-like gauge theories (e.g. QCD) with domain-wall/overlap fermions, and discuss how to optimize the chiral symmetry for any finite $N_s$ (sites in the fifth dimension). In this formulation, quark propagators in gauge background can be computed efficiently through the effective 4D lattice Dirac operator.

Comments: 7 pages, Lattice 2003 plenary talk