We review results concerning the critical behavior of spin systems at equilibrium. We
consider the Ising and the general O (N)-symmetric universality classes, including the N→ 0 …

Progress on the potential method, recently proposed to investigate hadron interactions in
lattice QCD, is reviewed. The strategy to extract the potential in lattice QCD is explained in …

Using results from conformal field theory, we compute several universal amplitude ratios for
the two-dimensional Ising model at criticality on a symmetric torus. These include the …

We calculate the two-pion wave function in the ground state of the I= 2 S-wave system and
find the interaction range between two pions, which allows us to examine the validity of the …

Smearing the bare quantum fields in lattice calculations before applying composite hadron
creation operators has a long record of substantially improving overlaps onto low-lying …

We compute the master integrals containing one massive propagator entering the two-loop
electroweak form factor, ie, the process ff ̄→ X, where ff ̄ is an on-shell massless fermion …

We investigate static quark-antiquark operators based on trial states formed from
eigenvectors of the covariant three-dimensional lattice Laplace operator. We test the method …

Tensor-network methods are used to perform a comparative study of the two-dimensional
classical Heisenberg and RP 2 models. We demonstrate that uniform matrix product states …

The low-lying energy spectrum of the static-colour-source-anti-source system in a vacuum
containing light and strange quarks is computed using lattice QCD for a range of different …

We consider lattice field theories with topological actions, which are invariant against small
deformations of the fields. Some of these actions have infinite barriers separating different …