76 citations · 117 across the 6 of their papers we have counts for
6 papers
Scalars from Gauge Fields
M. Stingl
In an Euclidean SU(2) U(1) gauge theory without fermions, we identify scalar-field variables, functionals of the gauge fields and coming in different representations of i…
Variational Worldline Approximation for the Relativistic Two-Body Bound State in a Scalar Model
K. Barro-Bergflödt, R. Rosenfelder, M. Stingl
We use the worldline representation of field theory together with a variational approximation to determine the lowest bound state in the scalar Wick-Cutkosky model where two equal-…
Worldline Variational Approximation: A New Approach to the Relativistic Binding Problem
K. Barro-Bergflödt, R. Rosenfelder, M. Stingl
We determine the lowest bound-state pole of the density-density correlator in the scalar Wick-Cutkosky model where two equal-mass constituents interact via the exchange of mesons.…
Field-Theory Amplitudes as Resurgent Functions
M. Stingl
A series of informal seminars at graduate-student level on the subject of coupling dependence in quantum field theory, with an elementary introduction to the notion of resurgent fu…
Extended Iterative Scheme for QCD: Three-point Vertices
L. Driesen, J. Fromm, J. Kuhrs +1
In the framework of a generalized iterative scheme introduced previously to account for the non-analytic coupling dependence associated with the renormalization-group invariant mas…
A Systematic Extended Iterative Solution for QCD
M. Stingl
An outline is given of an extended perturbative solution of Euclidean QCD which systematically accounts for a class of nonperturbative effects, while allowing renormalization by th…