180 citations · 2.3k across the 144 of their papers we have counts for
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The Schwinger Model with Perfect Staggered Fermions
W. Bietenholz, H. Dilger
We construct and test a quasi-perfect lattice action for staggered fermions. The construction starts from free fermions, where we suggest a new blocking scheme, which leads to exce…
The Schwinger Model with Perfect Staggered Fermions
W. Bietenholz, H. Dilger
We construct a new perfect action for free staggered fermions, which is more local than the one obtained from the standard block average scheme. This pays off in superior propertie…
A Preconditioner for Improved Fermion Actions
N. Eicker, W. Bietenholz, A. Frommer +3
SSOR preconditioning of fermion matrix inversions which is parallelized using a locally-lexicographic lattice sub-division, has been shown to be very efficient for standard Wilson…
Preconditioning of Improved and ``Perfect'' Fermion Actions
W. Bietenholz, N. Eicker, A. Frommer +4
We construct a locally-lexicographic SSOR preconditioner to accelerate the parallel iterative solution of linear systems of equations for two improved discretizations of lattice fe…
Exact Supersymmetry on the Lattice
W. Bietenholz
We discuss the possibility of representing supersymmetry exactly in a lattice discretized system. In particular, we construct a perfect supersymmetric action for the Wess-Zumino mo…
Improved Lattice Actions with Chemical Potential
W. Bietenholz
We give a prescription how to include a chemical potential μinto a general lattice action. This inclusion does not cause any lattice artifacts. Hence its application to an improved…