534 citations · 3.2k across the 70 of their papers we have counts for
72 papers
Ising model as Wilson-Majorana Fermions
Ulli Wolff
We show the equivalence of the 2D Ising model to standard free Euclidean lattice fermions of the Wilson Majorana type. The equality of the loop representations for the partition fu…
Symanzik Improvement with Dynamical Charm: A 3+1 Scheme for Wilson Quarks
Patrick Fritzsch, Rainer Sommer, Felix Stollenwerk +1
We discuss the problem of lattice artefacts in QCD simulations enhanced by the introduction of dynamical charmed quarks. In particular, we advocate the use of a massive renormaliza…
O(3) model with Nienhuis action
Ferenc Niedermayer, Ulli Wolff
We study the O(3) sigma model in on the lattice with a Boltzmann weight linearized in on each link. While the spin formulation now suffers from a sign-problem the equival…
Triviality of in the broken phase revisited
Tomasz Korzec, Ulli Wolff
We define a finite size renormalization scheme for theory which in the thermodynamic limit reduces to the standard scheme used in the broken phase. We use it to re-investigat…
Determination of c_sw in N_f=3+1 Lattice QCD with massive Wilson fermions
Patrick Fritzsch, Rainer Sommer, Felix Stollenwerk +1
We develop a strategy for the non-perturbative determination of the O(a)-improvement coefficient c_sw for Wilson fermions with massive sea quarks. The improvement condition is defi…
Non-perturbative computation of the strong coupling constant on the lattice
Rainer Sommer, Ulli Wolff
We review the long term project of the ALPHA collaboration to compute in QCD the running coupling constant and quark masses at high energy scales in terms of low energy hadronic qu…