4 papers
Strongly coupled compact lattice QED with staggered fermions
J. Cox, W. Franzki, J. Jersák +2
We explore the compact U(1) lattice gauge theory with staggered fermions and gauge field action -\sum_P [β\cos(Θ_P) + γ\cos(2Θ_P)], both for dynamical fermions and in the quenched…
Gauge invariant generalization of the 2D chiral Gross-Neveu model
W. Franzki, J. Jersák, R. Welters
By means of the Lee-Shrock transformation we generalize the 2D Gross-Neveu (GN) model to a U(1) gauge theory with charged fermion and scalar fields in 2D ( model). The…
Tricritical point in strongly coupled U(1) gauge theory with fermions and scalars
W. Franzki, J. Jersák
We investigate the tricritical point in the lattice fermion--gauge--scalar model with U(1) gauge symmetry. In the vicinity of this point, in the phase with the broken chiral symmet…
Evidence for a Critical Behavior in Pure Compact QED
J. Jersák, C. B. Lang, T. Neuhaus
We present evidence about a critical behavior of compact QED (CQED) pure gauge theory. Regularizing the theory on lattices homotopic to a sphere, we present evidence for a cri…