68 citations · 297 across the 17 of their papers we have counts for
18 papers
Baryons in the Gross-Neveu model in 1+1 dimensions at finite number of flavors
Julian J. Lenz, Laurin Pannullo, Marc Wagner +2
In a recent work we studied the phase structure of the Gross-Neveu (GN) model in dimensions at finite number of fermion flavors , finite temperature…
Inhomogeneous phases in the Gross-Neveu model in 1+1 dimensions at finite number of flavors
Julian Lenz, Laurin Pannullo, Marc Wagner +2
We explore the thermodynamics of the 1+1-dimensional Gross-Neveu (GN) model at finite number of fermion flavors , finite temperature and finite chemical potential using lattic…
Supersymmetric SU(3) Gauge Theory with a Twist
Marc Steinhauser, Andre Sternbeck, Björn Wellegehausen +1
We investigate the pure gauge sector of Super-QCD, i.e. Super-Yang-Mills (SYM) theory, with focus on the bound states. To improve chiral symmetry as well as supersymmetry at finite…
Continuum Goldstone spectrum of two-color QCD at finite density with staggered quarks
Jonas Wilhelm, Lukas Holicki, Dominik Smith +2
We carry out lattice simulations of two-color QCD and spectroscopy at finite density with two flavors of rooted-staggered quarks and a diquark source term. As in a previous four-fl…
Lattice investigation of the phase diagram of the 1+1 dimensional Gross-Neveu model at finite number of fermion flavors
Laurin Pannullo, Julian Lenz, Marc Wagner +2
We explore the phase structure of the 1+1 dimensional Gross-Neveu model at finite number of fermion flavors using lattice field theory. Besides a chirally symmetric phase and a hom…
Absence of chiral symmetry breaking in Thirring models in 1+2 dimensions
Julian Lenz, Björn Wellegehausen, Andreas Wipf
The Thirring model is an interacting fermion theory with current-current interaction. The model in dimensions has applications in condensed-matter physics to describe the ele…
Inhomogeneous phases in the 1+1 dimensional Gross-Neveu model at finite number of fermion flavors
Laurin Pannullo, Julian Lenz, Marc Wagner +2
We study the phase diagram of the 1+1 dimensional Gross-Neveu model at finite number of fermion flavors using lattice field theory. Numerical results are presented, which indicate…
Supersymmetric Gauge Theory -- Pure Gauge sector with a twist
Marc Steinhauser, Andre Sternbeck, Björn Wellegehausen +1
Supersymmetric gauge theories are an essential part of most theories beyond the standard model. In the present work we investigate the pure gauge sector of Super-QCD focusing on th…
Supersymmetric Gauge Theory - Towards simulations of Super-QCD
Björn Wellegehausen, Andreas Wipf
supersymmetric QCD (SQCD) is a possible building block of theories beyond the standard model. It describes the interaction between gluons and quarks with their supe…
Mass spectrum of -dimensional super Yang-Mills theory on the lattice
D. August, M. Steinhauser, B. H. Wellegehausen +1
In the present work we analyse supersymmetric Yang-Mills (SYM) theory in two dimensions by means of lattice simulations. The theory arises as dimensional reduct…
Critical flavour number of the Thirring model in three dimensions
Björn H. Wellegehausen, Daniel Schmidt, Andreas Wipf
The Thirring model is a four-fermion theory with a current-current interaction and chiral symmetry. It is closely related to three-dimensional QED and other models used to…
What we can learn from two-dimensional QCD-like theories at finite density
Björn H. Wellegehausen, Lorenz von Smekal
We study generic properties of strongly interacting matter at finite density as relevant to heavy-ion collisions at moderate beam energies or the physics of neutron stars and their…
Asymptotic safety on the lattice: The Nonlinear O(N) Sigma Model
Björn H. Wellegehausen, Daniel Körner, Andreas Wipf
We study the non-perturbative renormalization group flow of the nonlinear O(N) sigma model in two and three spacetime dimensions using a scheme that combines an effective local Hyb…
Hadron masses and baryonic scales in -QCD at finite density
Björn H. Wellegehausen, Axel Maas, Andreas Wipf +1
The QCD phase diagram at densities relevant to neutron stars remains elusive, mainly due to the fermion-sign problem. At the same time, a plethora of possible phases has been predi…
G2 gauge theories
Axel Maas, Björn H. Wellegehausen
QCD can be formulated using any gauge group. One particular interesting choice is to replace SU(3) by the exceptional group G2. Conceptually, this group is the simplest group with…
The phase diagram of a gauge theory with fermionic baryons
Axel Maas, Lorenz von Smekal, Björn Wellegehausen +1
The fermion-sign problem at finite density is a persisting challenge for Monte-Carlo simulations. Theories that do not have a sign problem can provide valuable guidance and insight…
Phase diagram of the G(2) Higgs model and G(2)-QCD
Björn H. Wellegehausen
We investigate gauge theories based on the smallest exceptional simple lie group G(2). Our first model considered here is G(2) Yang-Mills coupled to a fundamental Higgs field. In 4…
Phase diagram of the lattice G(2) Higgs Model
Björn H. Wellegehausen, Andreas Wipf, Christian Wozar
We study the phases and phase transition lines of the finite temperature G(2) Higgs model. Our work is based on an efficient local hybrid Monte-Carlo algorithm which allows for acc…