53 citations · 220 across the 21 of their papers we have counts for
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Study of compact abelian lattice gauge theories
Jiri Jersak
This is a review, intended for lattice nonspecialists, of the studies of the compact abelian gauge theories on the lattice performed by the Aachen lattice field theory group. We di…
Spinons and holons on the lattice
Jiri Jersak
We point out that the dynamical fermion mass generation in the 3D compact U(1) lattice gauge theory with charged fermion and scalar fields (chi-U-phi_3 model) may be of relevance f…
Scaling of magnetic monopoles in the pure compact QED
J. Jersak, T. Neuhaus, H. Pfeiffer
In the pure U(1) lattice gauge theory with the Villain action we find that the monopole mass in the Coulomb phase and the monopole condensate in the confinement phase scale accordi…
Scaling analysis of the magnetic monopole mass and condensate in the pure U(1) lattice gauge theory
J. Jersak, T. Neuhaus, H. Pfeiffer
We observe the power law scaling behavior of the monopole mass and condensate in the pure compact U(1) gauge theory with the Villain action. In the Coulomb phase the monopole mass…
New universality class of chiral symmetry breaking in the strongly coupled U(1) model
W. Franzki, J. Jersak
We describe a 4D U(1) lattice gauge theory with charged scalar and fermion matter fields ( model). At sufficiently strong gauge coupling, the chiral symmetry is broke…
Universality of the gauge-ball spectrum of the four-dimensional pure U(1) gauge theory
J. Cox, J. Jersak, H. Pfeiffer +3
We continue numerical studies of the spectrum of the pure U(1) lattice gauge theory in the confinement phase, initiated in our previous work. Using the extended Wilson action $ S =…
Strongly coupled lattice gauge theory with dynamical fermion mass generation in three dimensions
I. M. Barbour, N. Psycharis, E. Focht +2
We investigate the critical behaviour of a three-dimensional lattice $\chiUϕ_3$ model in the chiral limit. The model consists of a staggered fermion field, a U(1) gauge field (with…
Renormalization of strongly coupled U(1) lattice gauge theories
J. Jersak
Recent numerical studies of the 4D pure compact U(1) lattice gauge theory, I have participated in, are reviewed. We look for a possibility to construct an interesting nonperturbati…
Dynamical fermion mass generation at a tricritical point in strongly coupled U(1) lattice gauge theory
W. Franzki, J. Jersak
Fermion mass generation in the strongly coupled U(1) lattice gauge theory with fermion and scalar fields of equal charge is investigated by means of numerical simulation with dynam…
Strongly coupled U(1) lattice gauge theory as a microscopic model of Yukawa theory
W. Franzki, J. Jersak
Dynamical chiral symmetry breaking in a strongly coupled U(1) lattice gauge model with charged fermions and scalar is investigated by numerical simulation. Several composite neutra…
Scaling of gauge balls and static potential in the confinement phase of the pure U(1) lattice gauge theory
J. Cox, W. Franzki, J. Jersak +4
We investigate the scaling behaviour of gauge-ball masses and static potential in the pure U(1) lattice gauge theory on toroidal lattices. An extended gauge field action $-\sum_P(β…
Gauge-ball spectrum of the four-dimensional pure U(1) gauge theory
J. Cox, W. Franzki, J. Jersak +3
We investigate the continuum limit of the gauge-ball spectrum in the four-dimensional pure U(1) lattice gauge theory. In the confinement phase we identify various states scaling wi…
Properties of the non-Gaussian fixed point in 4D compact U(1) lattice gauge theory
J. Cox, W. Franzki, J. Jersak +3
We examine selected properties of the gauge-ball spectrum and fermionic variables in the vicinity of the recently discussed non-Gaussian fixed point of 4D compact U(1) lattice gaug…
Four-dimensional pure compact U(1) gauge theory on a spherical lattice
J. Jersak, C. B. Lang, T. Neuhaus
We investigate the confinement-Coulomb phase transition in the four-dimensional (4D) pure compact U(1) gauge theory on spherical lattices. The action contains the Wilson coupling b…
Non-Gaussian fixed point in four-dimensional pure compact U(1) gauge theory on the lattice
J. Jersak, C. B. Lang, T. Neuhaus
The line of phase transitions, separating the confinement and the Coulomb phases in the four-dimensional pure compact U(1) gauge theory with extended Wilson action, is reconsidered…
Magnetic and chiral universality classes in a 3D Yukawa model
E. Focht, J. Jersak, J. Paul
The 3D Yukawa model with U(1) chiral symmetry is investigated in a broad interval of parameters using the Binder method. Critical exponents of the Wilson-Fisher (magnetic) and Gros…
Spin and Gauge Systems on Spherical Lattices
Ch. Hoelbling, A. Jakovac, J. Jersak +2
We present results for 2D and 4D systems on lattices with topology homotopic to the surface of a (hyper) sphere or . Finite size scaling is studied in situations with ph…
Chiral phase transition in a lattice fermion--gauge--scalar model with U(1) gauge symmetry
W. Franzki, C. Frick, J. Jersak +1
The chiral phase transition induced by a charged scalar field is investigated numerically in a lattice fermion-gauge-scalar model with U(1) gauge symmetry, proposed recently as a m…
On the equivalence between 2D Yukawa and Gross-Neveu models
E. Focht, W. Franzki, J. Jersak +1
We study numerically on the lattice the 2D Yukawa model with the U(1) chiral symmetry and = 16 at infinite scalar field self-coupling. The scaling behaviour of the fermion ma…
Study of the Asymptotic Freedom of 2D Yukawa Models on the Lattice
A. K. De, E. Focht, W. Franzki +2
We investigate on the lattice the Yukawa models in 2 dimensions with Z(2) and U(1) symmetries. These models reduce to the usual and chiral Gross-Neveu models, respectively, when th…
How much are 2d Yukawa models similar to the Gross-Neveu models?
A. K. De, E. Focht, W. Franzki +1
We present numerical evidence that the 2d Yukawa models with strong quartic selfcoupling of the scalar field have the same phase structure and are asymptotically free in the Yukawa…