1997/07/31 by Herbert Neuberger · 3 citations
Physics and Astronomy · #hep-lat
paper · pdf · doi:10.1016/s0370-2693(97)01368-3
published as Phys.Lett. B417 (1998) 141-144 · 7 pages, plain TeX; references corrected
arxiv created 1997/10/27 · arxiv updated 2009/12/01
It is suggested that the fermion determinant for a vector-like gauge theory with strictly massless quarks can be represented on the lattice as det1+V\over 2, where V=X(X^† X)-1/2 and X is the Wilson-Dirac lattice operator with a negative mass term. There is no undesired doubling and no need for any fine tuning. Several other appealing features of the formula are pointed out.