A new approach to Ginsparg-Wilson fermions

Details A new approach to Ginsparg-Wilson fermions A new approach to Ginsparg-Wilson fermions

2000-03-07

arxiv.org/abs/hep-lat/0003005v1

Phys.Rev. D63 (2001) 114501

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages

Scientific paper

10.1103/PhysRevD.63.114501

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 to find Dirac operators which obey the Ginpsparg-Wilson equation with arbitrary precision.

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