In the presence of a static quark--antiquark pair, the spectrum of the low-lying states in SU($N$) gauge theories is discrete and likely to be described, at large quark separations $r$, by an… Expand

Using a new type of simulation algorithm for the standard SU(3) lattice gauge theory that yields results with unprecedented precision, we confirm the presence of a ?/r correction to the static quark… Expand

The gradient flow in non-abelian gauge theories on $ {\mathbb{R}^4} $ is defined by a local diffusion equation that evolves the gauge field as a function of the flow time in a gauge-covariant manner.… Expand

Lattice QCD with Wilson quarks and a chirally twisted mass term represents a promising alternative regularization of QCD, which does not suffer from unphysical fermion zero modes. We show how the… Expand