In this work the determination of low-energy bound states in quantum chromodynamics is
recast so that it is linked to a weak-coupling problem. This allows one to approach the …

More than twenty years after quantum chromodynamics (QCD) was introduced as a
microscopic theory of strong interactions, very little is known about its solutions. At least in …

It has been recognized for some time that quantization on a null plane has several unique
and remarkable advantages for the elucidation of quantum field theories. To date these …

Abstract We consider (1+ 1)-dimensional QCD coupled to scalars in the adjoint
representation of the gauge group SU (N). This model results from dimensional reduction of …

It has recently been proposed that light-front field theory provides a powerful tool for the
analysis of relativistic bound states when one makes a Tamm-Dancoff truncation. Such a …

In the study of the decay of a heavy scalar particle at rest in the Yukawa model at the one-
and two-loop levels, it is shown explicitly that naive light-cone quantization leads to a …

We study the physical electron in quantum electrodynamics expanded on the light-cone
Fock space in order to address two problems:(1) the physics of the electron's anomalous …

It is shown that an improper regularization in the light-cone quantization of field theories can
introduce a violation of rotational invariance as well as spurious divergences. Several …

We demonstrate the appearance of spontaneous symmetry breaking induced by
nonperturbative quantum corrections for scalar light cone quantum field theory in 1+ 1 …

Motivated by an apparent puzzle of the light-front vacua incompatible with the axial anomaly,
we have considered the two-dimensional massless Schwinger model for an arbitrary …