We present a broad conceptual introduction to some new ideas in nonperturbative quantum
field theory (QFT) that have led to progress toward an understanding of quark confinement in …

A bstract We consider't Hooft anomalies of four-dimensional gauge theories whose fermion
matter content admits Spin G (4) generalized spin structure, with G either gauged or a global …

A bstract Resurgence theory implies that the non-perturbative (NP) and perturbative (P) data
in a QFT are quantitatively related, and that detailed information about non-perturbative …

A bstract Anomaly matching constrains low-energy physics of strongly-coupled field
theories, but it is not useful at finite temperature due to contamination from high-energy …

We discuss the SU (3)/[U (1)× U (1)] nonlinear sigma model in 1+ 1D and, more broadly, its
linearized counterparts. Such theories can be expressed as U (1)× U (1) gauge theories and …

We show that $2 $ d adjoint QCD, an $ SU (N) $ gauge theory with one massless adjoint
Majorana fermion, has a variety of mixed't Hooft anomalies. The anomalies are derived …

A bstract This work examines non-perturbative dynamics of a 2-dimensional QFT by using
discrete't Hooft anomaly, semi-classics with circle compactification and bosonization. We …

We show that the semi-classical analysis of generic Euclidean path integrals necessarily
requires complexification of the action and measure, and consideration of complex saddle …

We explore a one parameter ζ ζ-deformation of the quantum-mechanical Sine-Gordon and
Double-Well potentials which we call the Double Sine-Gordon (DSG) and the Tilted Double …

We discuss quantum field theories with global SU (N) and O (N) symmetries for which
temporal direction is compactified on a circle of size L with periodicity of fields up to a global …