65 citations · 284 across the 16 of their papers we have counts for
17 papers
SIMULATeQCD: A simple multi-GPU lattice code for QCD calculations
Lukas Mazur, Dennis Bollweg, David A. Clarke +14
The rise of exascale supercomputers has fueled competition among GPU vendors, driving lattice QCD developers to write code that supports multiple APIs. Moreover, new developments i…
Viscosity of pure-glue QCD from the lattice
Luis Altenkort, Alexander M. Eller, Anthony Francis +4
We calculate shear viscosity and bulk viscosity in SU(3) gauge theory on the lattice at . The viscosities are extracted via a Kubo formula from the reconstructed spectra…
Parallel Quantum Chemistry on Noisy Intermediate-Scale Quantum Computers
Robert Schade, Carsten Bauer, Konstantin Tamoev +3
A novel parallel hybrid quantum-classical algorithm for the solution of the quantum-chemical ground-state energy problem on gate-based quantum computers is presented. This approach…
Lattice QCD noise reduction for bosonic correlators through blocking
Luis Altenkort, Alexander M. Eller, O. Kaczmarek +3
We propose a method to substantially improve the signal-to-noise ratio of lattice correlation functions for bosonic operators or other operator combinations with disconnected contr…
Continuum extrapolation of the gradient-flowed color-magnetic correlator at
Luis Altenkort, Alexander M. Eller, Olaf Kaczmarek +3
In a recently published work we employ gradient flow on the lattice to extract the leading contribution of the heavy quark momentum diffusion coefficient in the heavy quark limit f…
HotQCD on Multi-GPU Systems
Luis Altenkort, Dennis Bollweg, David Anthony Clarke +5
We present , HotQCD's software for performing lattice QCD calculations on GPUs. Started in late 2017 and intended as a full replacement of the previous single…
Spectral reconstruction details of a gradient-flowed color-electric correlator
Luis Altenkort, Alexander M. Eller, Olaf Kaczmarek +3
In a recently published work we provide a proof-of-concept of a novel method to extract the heavy quark momentum diffusion coefficient from color-electric correlators on the lattic…
Eigenvalue spectra of QCD and the fate of breaking towards the chiral limit
Olaf Kaczmarek, Lukas Mazur, Sayantan Sharma
The finite temperature phase diagram of QCD with two massless quark flavors is not yet understood because of the subtle effects of anomalous symmetry. In this work we addr…
The sphaleron rate from Euclidean lattice correlators: an exploration
Luis Altenkort, Alexander M. Eller, Olaf Kaczmarek +3
We show how the sphaleron rate (the Minkowski rate for topological charge diffusion) can be determined by analytical continuation of the Euclidean topological-charge-density two-po…
Heavy quark momentum diffusion from the lattice using gradient flow
Luis Altenkort, Alexander M. Eller, Olaf Kaczmarek +3
We apply the gradient flow on a color-electric two-point function that encodes the heavy quark momentum diffusion coefficient. The simulations are done on fine isotropic lattices i…
QCD phase transition in the chiral limit
Olaf Kaczmarek, Frithjof Karsch, Anirban Lahiri +2
We present a lattice QCD based determination of the chiral phase transition temperature in QCD with two massless (up and down) and one strange quark having its physical mass. We pr…
Euclidean correlation functions of the topological charge density
Lukas Mazur, Luis Altenkort, Olaf Kaczmarek +1
We present first results of our study on the Euclidean topological charge density correlation function. In order to get a well defined topological charge density and to improve the…
Color-electric correlation functions under gradient flow
Luis Altenkort, Olaf Kaczmarek, Lukas Mazur +1
We report on the progress of our study on the color-electric correlation functions under gradient flow on the lattice. This calculation is the first step of our long-term project t…
Open-Boundary Conditions in the Deconfined Phase
Adrien Florio, Olaf Kaczmarek, Lukas Mazur
In this work, we consider open-boundary conditions at high temperatures, as they can potentially be of help to measure the topological susceptibility. In particular, we measure the…
The fate of axial U(1) in 2+1 flavor QCD towards the chiral limit
Lukas Mazur, Olaf Kaczmarek, Edwin Laermann +1
The region of the Columbia plot with two light quark flavors is not yet conclusively understood. Non-perturbative effects, e.g. the magnitude of the anomalous U(1) axial symmetry b…
Charmonium and bottomonium spectral functions in the vector channel
Heng-Tong Ding, Olaf Kaczmarek, Anna-Lena Kruse +6
In this paper we report our results on quarkonium spectral functions in the vector channel obtained from quenched lattice QCD simulations at . The calculation…
Thermal Simulations, Open Boundary Conditions and Switches
Yannis Burnier, Adrien Florio, Olaf Kaczmarek +1
gauge theories on compact spaces have a non-trivial vacuum structure characterized by a countable set of topological sectors and their topological charge. In lattice simula…