113 citations · 433 across the 19 of their papers we have counts for
21 papers
RHMC with Block Solvers and Multiple Pseudofermions
Philippe de Forcrand, Liam Keegan
The dominant cost of most lattice QCD simulations is the inversion of the Dirac operator required to calculate the force term in the RHMC update. One way to improve this situation…
`t Hooft model on the Lattice
Margarita García Pérez, Antonio González-Arroyo, Liam Keegan +1
Lattice results are presented for the meson spectrum of 1+1 dimensional gauge theory at large , using the Twisted Eguchi-Kawai model. Comparison is made to the results obtained…
Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution
Aleksas Mazeliauskas
We use leading order effective kinetic theory to simulate the pre\nobreakdash-equilibrium evolution of transverse energy and flow perturbations in heavy-ion collisions. We provide…
Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution
Liam Keegan, Aleksi Kurkela, Aleksas Mazeliauskas +1
We use effective kinetic theory, accurate at weak coupling, to simulate the pre-equilibrium evolution of transverse energy and flow perturbations in heavy-ion collisions. We provid…
Weak and strong coupling equilibration in nonabelian gauge theories
Liam Keegan, Aleksi Kurkela, Paul Romatschke +2
We present a direct comparison studying equilibration through kinetic theory at weak coupling and through holography at strong coupling in the same set-up. The set-up starts with a…
(Dimensional) twisted reduction in large N gauge theories
Liam Keegan, Alberto Ramos
We show that the spontaneous breaking of center symmetry can be avoided on a lattice with the appropriate choice of twisted boundary conditions. In order for this t…
Schwinger Model Mass Anomalous Dimension
Liam Keegan
The mass anomalous dimension for several gauge theories with an infrared fixed point has recently been determined using the mode number of the Dirac operator. In order to better un…
Mass anomalous dimension of Adjoint QCD at large N from twisted volume reduction
Margarita García Pérez, Antonio González-Arroyo, Liam Keegan +1
In this work we consider the gauge theory with two Dirac fermions in the adjoint representation, in the limit of large . In this limit the infinite-volume physics of thi…
A comparison of updating algorithms for large N reduced models
Margarita García Pérez, Antonio González-Arroyo, Liam Keegan +2
We investigate Monte Carlo updating algorithms for simulating Yang-Mills fields on a single-site lattice, such as for the Twisted Eguchi-Kawai model (TEK). We show that per…
The twisted gradient flow running coupling
Margarita García Pérez, Antonio González-Arroyo, Liam Keegan +1
We measure the running of the 't Hooft coupling by performing a step scaling analysis of the Twisted Eguchi-Kawai (TEK) model, the SU() gauge theory on a single sit…
TEK twisted gradient flow running coupling
Margarita García Pérez, Antonio González-Arroyo, Liam Keegan +1
We measure the running of the twisted gradient flow coupling in the Twisted Eguchi-Kawai (TEK) model, the SU(N) gauge theory on a single site lattice with twisted boundary conditio…
Anomalous dimensions of four-fermion operators from conformal EWSB dynamics
Luigi Del Debbio, Liam Keegan, Carlos Pena
(Quasi)conformal scaling of composite operators from a strongly coupled EWSB dynamics helps to produce the characteristic hierarchies exhibited by the flavour couplings of the SM.…
Mass anomalous dimension from large N twisted volume reduction
Margarita Garcia Perez, Antonio Gonzalez-Arroyo, Liam Keegan +1
In this work we consider the SU(N) gauge theory with two Dirac fermions in the adjoint representation, in the limit of large N. Taking advantage of large N twisted volume reduction…
Mass Anomalous Dimension at Large N
Liam Keegan
In this work we attempt to determine the mass anomalous dimension of the SU(N) gauge theory with two Dirac fermions in the adjoint representation, in the limit of large N. The meth…
Systematic Errors of the MCRG Method
Simon Catterall, Luigi Del Debbio, Joel Giedt +1
We present a Monte Carlo Renormalisation Group (MCRG) study of the SU(2) gauge theory with two Dirac fermions in the adjoint representation. Using the two-lattice matching techniqu…
MCRG Minimal Walking Technicolor
Simon Catterall, Luigi Del Debbio, Joel Giedt +1
We present a Monte Carlo renormalisation group study of the SU(2) gauge theory with two Dirac fermions in the adjoint representation. Using the two-lattice matching technique we me…
MCRG Minimal Walking Technicolor
Simon Catterall, Luigi Del Debbio, Joel Giedt +1
We present a Monte Carlo renormalisation group study of the SU(2) gauge theory with two Dirac fermions in the adjoint representation. Using the two lattice matching technique recen…
Mass anomalous dimension and running of the coupling in SU(2) with six fundamental fermions
Francis Bursa, Luigi Del Debbio, Liam Keegan +2
We simulate SU(2) gauge theory with six massless fundamental Dirac fermions. By using the Schrödinger Functional method we measure the running of the coupling and the fermion mass…
Mass anomalous dimension in SU(2) with six fundamental fermions
Francis Bursa, Luigi Del Debbio, Liam Keegan +2
We simulate SU(2) gauge theory with six massless fundamental Dirac fermions. We measure the running of the coupling and the mass in the Schroedinger Functional scheme. We observe v…
Running of the coupling and quark mass in SU(2) with two adjoint fermions
Francis Bursa, Luigi Del Debbio, Liam Keegan +2
We simulate SU(2) gauge theory with two massless Dirac fermions in the adjoint representation. We calculate the running of the Schroedinger Functional coupling and the renormalised…
Mass anomalous dimension in SU(2) with two adjoint fermions
Francis Bursa, Luigi Del Debbio, Liam Keegan +2
We study SU(2) lattice gauge theory with two flavours of Dirac fermions in the adjoint representation. We measure the running of the coupling in the Schroedinger Functional (SF) sc…