507 citations · 2.6k across the 38 of their papers we have counts for
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Progress using generalized lattice Dirac operators to parametrize the Fixed-Point QCD action
P. Hasenfratz, S. Hauswirth, K. Holland +3
We report on an ongoing project to parametrize the Fixed-Point Dirac operator for massless quarks, using a very general construction which has arbitrarily many fermion offsets and…
Asymptotically free theories based on discrete subgroups
P. Hasenfratz, F. Niedermayer
We study the critical behavior of discrete spin models related to the 2d O(3) non-linear sigma model. Precise numerical results suggest that models with sufficiently large discrete…
Unexpected results in asymptotically free quantum field theories
Peter Hasenfratz, Ferenc Niedermayer
We study the behavior of asymptotically free (AF) spin and gauge models when their continuous symmetry group is replaced by different discrete non-Abelian subgroups. Precise numeri…
The construction of generalized Dirac operators on the lattice
P. Hasenfratz, S. Hauswirth, K. Holland +3
We discuss the steps to construct Dirac operators which have arbitrary fermion offsets, gauge paths, a general structure in Dirac space and satisfy the basic symmetries (gauge symm…