403 citations · 4.2k across the 74 of their papers we have counts for
20 papers · 1 filter
S-duality in lattice super Yang-Mills
Joel Giedt, Simon Catterall, Poul Damgaard +1
We present a progress report on studying S-duality in lattice N=4 super Yang-Mills. This is being done through a computation of 1/2-BPS states on the Coulomb branch, especially the…
Latest results from lattice N=4 supersymmetric Yang--Mills
David Schaich, Simon Catterall, Poul H. Damgaard +1
We present some of the latest results from our numerical investigations of N=4 supersymmetric Yang--Mills theory formulated on a space-time lattice. Based on a construction that ex…
Results from lattice simulations of N=4 supersymmetric Yang--Mills
Simon Catterall, Joel Giedt, David Schaich +2
We report recent results and developments from our ongoing lattice studies of supersymmetric Yang--Mills theory. These include a proof that only a single fine-tuni…
N=4 Supersymmetry on a Space-Time Lattice
Simon Catterall, Poul H. Damgaard, Thomas DeGrand +2
Maximally supersymmetric Yang--Mills theory in four dimensions can be formulated on a space-time lattice while exactly preserving a single supersymmetry. Here we explore in detail…
Phase Structure of Lattice N=4 Super Yang-Mills
Simon Catterall, Poul H. Damgaard, Thomas Degrand +2
We make a first study of the phase diagram of four-dimensional N=4 super Yang-Mills theory regulated on a space-time lattice. The lattice formulation we employ is both gauge invari…
Effects of dynamical quarks on the spectrum of the Wilson Dirac operator
G. Akemann, P. H. Damgaard, K. Splittorff +1
Effects of dynamical quarks on the microscopic spectrum of the Wilson Dirac operator are analyzed by means of effective field theory. We consider the distributions of the real mode…
Wilson Fermions, Random Matrix Theory and the Aoki Phase
G. Akemann, P. H. Damgaard, K. Splittorff +1
The QCD partition function for the Wilson Dirac operator, , at nonzero lattice spacing can be expressed in terms of a chiral Lagrangian as a systematic expansion in the qu…
The Chiral Condensate in a Finite Volume
Poul H. Damgaard, Hidenori Fukaya
Chiral perturbation theory at finite four-volume V (=L^3T) is reconsidered with a view towards finding a computational scheme that can deal with any value of M_πL, where M_πis a ge…
Finite Volume Scaling of Pseudo Nambu-Goldstone Bosons in QCD
F. Bernardoni, P. H. Damgaard, H. Fukaya +1
We consider chiral perturbation theory in a finite volume and in a mixed regime of quark masses. We take N_l light quarks near the chiral limit, in the so-called epsilon-regime, wh…
Finite-volume Correction to the Pion Decay Constant in the Epsilon-Regime
Poul H. Damgaard, Thomas DeGrand, Hidenori Fukaya
In the chiral limit of QCD, the pion decay constant F can be extracted from lattice gauge theory by means of a coupling to isospin chemical potential. Here we compute the leading c…
Lattice Supersymmetry: Equivalence between the Link Approach and Orbifolding
Poul H. Damgaard, So Matsuura
We examine the relation between supersymmetric lattice gauge theories constructed by the link approach and by orbifolding and show that they are equivalent. We discuss the number o…
Partially quenched chiral perturbation theory in the epsilon-regime
Poul H. Damgaard, Hidenori Fukaya
We calculate meson correlators in the epsilon-regime within partially quenched chiral perturbation theory. The valence quark masses and sea quark masses can be chosen arbitrary and…
Relations among Supersymmetric Lattice Gauge Theories via Orbifolding
Poul H. Damgaard, So Matsuura
We show how to derive Catterall's supersymmetric lattice gauge theories directly from the general principle of orbifolding followed by a variant of the usual deconstruction. These…
Classification of Supersymmetric Lattice Gauge Theories by Orbifolding
Poul H. Damgaard, So Matsuura
We provide a general classification of supersymmetric lattice gauge theories that can be obtained from orbifolding of theories with four and eight supercharges. We impose at least…
Divergent chiral condensate in the quenched Schwinger model
Poul H. Damgaard, Urs M. Heller, Rajamani Narayanan +1
We calculate numerically the eigenvalue distribution of the overlap Dirac operator in the quenched Schwinger model on a lattice. The distribution does not fit any of the three univ…
The Microscopic Dirac Operator Spectrum
P. H. Damgaard
We review the exact results for microscopic Dirac operator spectra based on either Random Matrix Theory, or, equivalently, chiral Lagrangians. Implications for lattice calculations…
Patterns of Spontaneous Chiral Symmetry Breaking in Vectorlike Gauge Theories
P. H. Damgaard, U. M. Heller, R. Niclasen +1
It has been conjectured that spontaneous chiral symmetry breaking in strongly coupled vectorlike gauge theories falls into only three different classes, depending on the gauge grou…
Partially Quenched Chiral Condensates from the Replica Method
Poul H. Damgaard
A large-N_f expansion is used to compute the partially quenched chiral condensate of QCD in the microscopic finite-volume scaling region.
Deconfinement, Screening and Abelian Projection at Finite Temperature
P. H. Damgaard, J. Greensite, M. Hasenbusch
The behavior of static sources transforming according to different irreducible representations of the gauge group is studied in the context of finite temperature lattice gauge theo…
On Spin and Matrix Models in the Complex Plane
Poul H. Damgaard, Urs M. Heller
We describe various aspects of statistical mechanics defined in the complex temperature or coupling-constant plane. Using exactly solvable models, we analyse such aspects as renorm…