103 citations · 394 across the 19 of their papers we have counts for
19 papers
Numerical study of duality and universality in a frozen superconductor
T. Neuhaus, A. Rajantie, K. Rummukainen
The three-dimensional integer-valued lattice gauge theory, which is also known as a "frozen superconductor," can be obtained as a certain limit of the Ginzburg-Landau theory of sup…
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 Boson Masses in the 3-d, SU(2) Gauge-Higgs Model
F. Karsch, T. Neuhaus, A. Patkós +1
We study gauge boson propagators in the symmetric and symmetry broken phases of the 3-d, gauge-Higgs model. Correlation functions for the gauge fields are calculated in Lan…
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…
Effective Scalar Theory of the Electroweak Phase Transition
F. Karsch, T. Neuhaus, A. Patkós
This talk summarizes results obtained from simulating a three dimensional pure Order Parameter (OP) model of the Electroweak Phase Transition (EWPT). Its detailed presentation appe…
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…
Compact U(1) Gauge Theory on Lattices with Trivial Homotopy Group
C. B. Lang, T. Neuhaus
We study the pure gauge model on a lattice manifold with trivial fundamental homotopy group, homotopically equivalent to an . Monopole loops may fluctuate freely on that latti…
Effective Scalar Field Theory for the Electroweak Phase Transition
F. Karsch, T. Neuhaus, A. Patkos
We investigate an effective model for the finite temperature restoration phase transition of the electroweak theory. It is obtained by dimensional reduction of the dimensiona…
Multicanonical study of nonlinear -model
T. Neuhaus
We present a new and exploratory approach to determine the -shift in the nonlinear -model. The method is based on a scaling hypothesis for a free energy difference…
The First Order Signal in Pure U(1) Gauge Theory May be Fake
C. B. Lang, T. Neuhaus
We study the deconfinement phase transition of compact pure lattice gauge theory with the Wilson action on {\em closed topology} lattices. In contrast to studies of compact…
A Determination of Interface Free Energies
A. Billoire, T. Neuhaus, B. Berg
We determine the interface free energy between disordered and ordered phases in the q=10 and q=20 2-d Potts models using the results of multicanonical Monte Carlo simula…
Thermal Fluctuations of Chern-Simons Numbers in the Lattice SU(2) Higgs Model
F. Karsch, M. L. Laursen, T. Neuhaus +1
We study the temperature dependence of the Chern-Simons number fluctuations in the SU(2) Higgs Model on Euclidean lattices with spatial sizes up to 20^3. Temperatures well above th…
Vacuum Tunneling and Periodic Structure in Lattice Higgs Models
F. Karsch, M. L. Laursen, T. Neuhaus +1
Using a geometric definition for the lattice Chern-Simons term in even dimensions, we have studied the distribution of Chern-Simons numbers for the 2d-U(1) and the 4d-SU(2) lattice…
Observation of FSS for a First Order Phase Transition
A. Billoire, T. Neuhaus, B. Berg
We present the results of a multicanonical simulation of the q=20 2-d Potts model in the transition region. This is a very strong first order phase transition. We observe, for the…
Chern-Simons term in the 4-dimensional SU(2) Higgs Model
F. Karsch, M. L. Laursen, T. Neuhaus +1
Using Seiberg's definition for the geometric charge in SU(2) lattice gauge theory, we have managed to apply it also to the Chern-Simons term. We checked the periodic structure and…
A Lower Bound on in the O(4) Model on Anisotropic Lattices
R. V. Gavai, U. M. Heller, F. Karsch +2
Results of an investigation of the spin model at finite temperature using anisotropic lattices are presented. In both the large approximation and numerical simulations u…
Recent Results of Multimagnetical Simulations of the Ising Model
U. Hansmann, B. A. Berg, T. Neuhaus
To investigate order-order interfaces, we perform multimagnetical Monte Carlo simulations of the and Ising model. Stringent tests of the numerical methods are performed b…
Properties of Interfaces in the two and three dimensional Ising Model
B. A. Berg, U. Hansmann, T. Neuhaus
To investigate order-order interfaces, we perform multimagnetical Monte Carlo simulations of the and Ising model. Following Binder we extract the interfacial free energy…
A Study of Symmetry Restoration at Finite Temperature in the O(4) Model Using Anisotropic Lattices
R. V. Gavai, U. M. Heller, F. Karsch +2
Results of investigations of the O(4) spin model at finite temperature using anisotropic lattices are presented. In both the large approximation and the numerical simulations u…