121 citations · 1.3k across the 46 of their papers we have counts for
14 papers · 1 filter
Emergent photons and mechanisms of confinement
Jeffrey Giansiracusa, David Lanners, Tin Sulejmanpasic
We numerically study lattice gauge theories in 4D as prototypical models of systems with 1-. For , we provide eviden…
U(1)-gauged 2-flavor spin system in 3-D
Christof Gattringer, Tin Sulejmanpasic
We study a U(1)-gauged 2-component spin system in 3 dimensions. For the gauge fields we use the Villain formulation with a constraint that removes lattice monopoles and in this for…
Self-dual U(1) lattice field theory with a -term
Mariia Anosova, Christof Gattringer, Tin Sulejmanpasic
We study U(1) gauge theories with a modified Villain action. Such theories can naturally be coupled to electric and magnetic matter, and display exact electric-magnetic duality. In…
Numerical simulation of self-dual U(1) lattice field theory with electric and magnetic matter
Maria Anosova, Christof Gattringer, Nabil Iqbal +1
We study a recently proposed formulation of U(1) lattice field theory with electric and magnetic matter based on the Villain formulation. This discretization allows for a duality t…
Ising model as a Lattice Gauge Theory with a -term
Tin Sulejmanpasic
We discuss a gauged XY model a -term on an arbitrary lattice in 1+1 dimensions, and show that the theory reduces exactly to the 2d Ising model on the dual lattice in the limit o…
Topological terms in abelian lattice field theories
M. Anosova, C. Gattringer, D. Göschl +2
In this contribution we revisit the lattice discretization of the topological charge for abelian lattice field theories. The construction departs from an initially non-compact disc…
Abelian gauge theories on the lattice: -terms and compact gauge theory with(out) monopoles
Tin Sulejmanpasic, Christof Gattringer
We discuss a particular lattice discretization of abelian gauge theories in arbitrary dimensions. The construction is based on gauging the center symmetry of a non-compact abelian…
The critical endpoint in the 2d U(1) gauge-Higgs model at topological angle
Daniel Göschl, Christof Gattringer, Tin Sulejmanpasic
We study 2d U(1) gauge Higgs systems with a -term. For properly discretizing the topological charge as an integer we introduce a mixed group- and algebra-valued discretization (…
Dual simulation of the 2d U(1) gauge Higgs model at topological angle : Critical endpoint behavior
Christof Gattringer, Daniel Göschl, Tin Sulejmanpasic
We simulate the 2d U(1) gauge Higgs model on the lattice with a topological angle . The corresponding complex action problem is overcome by using a dual representation based on…
Phase diagram of the two-dimensional O(3) model from dual lattice simulations
Falk Bruckmann, Christof Gattringer, Thomas Kloiber +1
We have simulated the asymptotically free two-dimensional O(3) model at nonzero chemical potential using the model's dual representation. We first demonstrate how the latter solves…
The two-dimensional O(3) model at nonzero density: from dual lattice simulations to repulsive bosons
Falk Bruckmann, Christof Gattringer, Thomas Kloiber +1
We discuss the thermodynamics of the O(3) nonlinear sigma model in 1+1 dimensions at nonzero chemical potential (equivalent to a magnetic field). In its conventional field theory r…
Finite density non-linear sigma model and low energy physics
Falk Bruckmann, Christof Gattringer, Thomas Kloiber +1
We present lattice results for simulations of the non-linear sigma model at finite chemical potential. The complex action problem is overcome by a dual variable representati…
Grand canonical ensemble, multi-particle wave functions, scattering data, and lattice field theories
Falk Bruckmann, Christof Gattringer, Thomas Kloiber +1
We show that information about scattering data of a quantum field theory can be obtained from studying the system at finite density and low temperatures. In particular we consider…
Dual lattice representations for O(N) and CP(N-1) models with a chemical potential
Falk Bruckmann, Christof Gattringer, Thomas Kloiber +1
We derive dual representations for O(N) and CP(N-1) models on the lattice. In terms of the dual variables the partition sums have only real and positive contributions also at finit…