Abstract
We expand the most general lattice Dirac operator D in a basis of simple operators. The Ginsparg-Wilson equation turns into a system of coupled quadratic equations for the expansion coefficients. Our expansion of D allows for a natural cutoff and the remaining quadratic equations can be solved numerically. The procedure allows us to find Dirac operators which obey the Ginpsparg-Wilson equation with arbitrary precision.
- Received 14 March 2000
DOI:https://doi.org/10.1103/PhysRevD.63.114501
©2001 American Physical Society
