534 citations · 3.2k across the 70 of their papers we have counts for
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Symanzik improvement of lattice QCD with four flavors of Wilson quarks
Fatih Tekin, Rainer Sommer, Ulli Wolff
We have determined the non-perturbative O(a)-improvement coefficient c_sw for four flavors of Wilson quarks with the plaquette gauge action in a range of beta >= 5. The data are fi…
Simulating the All-Order Strong Coupling Expansion III: O(N) sigma/loop models
Ulli Wolff
We reformulate the O(N) sigma model as a loop model whose configurations are the all-order strong coupling graphs of the original model. The loop configurations are represented by…
Anomalous discrete chiral symmetry in the Gross-Neveu model and loop gas simulations
Oliver Bär, Willi Rath, Ulli Wolff
We investigate the discrete chiral transformation of a Majorana fermion on a torus. Depending on the boundary conditions the integration measure can change sign. Taking this anomal…
Precision check on triviality of phi^4 theory by a new simulation method
Ulli Wolff
We report precise simulations of phi^4 theory in the Ising limit. A recent technique to stochastically evaluate the all-order strong coupling expansion is combined with exact ident…