Gradient Flow: Perturbative and Non-Perturbative Renormalization

Abstract

We review the gradient flow for gauge and fermion fields and its applications to lattice gauge theory computations. Using specific examples, we discuss the interplay between perturbative and non-perturbative calculations in the context of renormalization with the gradient flow.

Comments: 12 pages, 3 figures, review presented at the XVth "Quark confinement and the Hadron spectrum" conference. This version fixes few typos of the published version