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hep-lat2003
Quenched spectroscopy with fixed-point and chirally improved fermions
BGR Collaboration, Christof Gattringer, Meinulf Gockeler +10
We present results from quenched spectroscopy calculations with the parametrized fixed-point and the chirally improved Dirac operators. Both these operators are approximate solutio…
hep-lat2002
Light hadron spectroscopy in quenched lattice QCD with chiral Fixed-Point fermions
Simon Hauswirth
The classically perfect Fixed-Point fermion action for lattice QCD, a highly improved discretization of the continuum theory that preserves chiral symmetry, is constructed in this…
hep-lat2000
Perfect discretizations of differential operators
S. Hauswirth
We investigate an approach for the numerical solution of differential equations which is based on the perfect discretization of actions. Such perfect discretizations show up at the…