Next challenges in semi-leptonic B decaysLattice calculation of B D(*) decay form factors is now available from multiple lattice collaborations for both zero-recoil limit and non-zero recoil kinematics. Yet, there are a…Shoji Hashimoto·Jun 7, 2024SaveLearn
Stout smearing and Wilson flow in lattice perturbation theoryWe present the expansion of stout smearing and the Wilson flow in lattice perturbation theory to order g03, which is suitable for one-loop calculations. As the Wilson flow is generated by…Maximilian Ammer, Stephan Durr·Jun 5, 2024SaveLearn
Staggered fermionsThese notes are based on a series of lectures on staggered fermions given at the Centre de Physique Th\'eorique, Luminy, in Marseille, France, January 17-25, 2024.Maarten Golterman·Jun 5, 2024SaveLearn
Quantum simulations of quantum electrodynamics in Coulomb gaugeIn recent years, the quantum computing method has been used to address the sign problem in traditional Monte Carlo lattice gauge theory (LGT) simulations. We propose that the Coulomb gauge (CG)…Tianyin Li·Jun 3, 2024SaveLearn
Quark orbital angular momentum in the proton from a twist-3 generalized parton distributionQuark orbital angular momentum in the proton is evaluated via a Lattice QCD calculation of the second Mellin moment of the twist-3 generalized parton distribution E2T in the forward…M. Engelhardt, N. Hasan, S. Krieg et al.·Jun 2, 2024SaveLearn
Progress on nucleon transition matrix elements with a lattice QCD variational analysisNucleon weak matrix elements can be extracted from nucleon correlation functions with lattice QCD simulations. The signal-to-noise ratio prohibits the analysis at large source-sink separations and as…Lorenzo Barca, Gunnar Bali, Sara Collins·May 31, 2024SaveLearn
Renormalization of nonlocal gluon operators on the latticeWe study the renormalization of a complete set of gauge-invariant gluon nonlocal operators in lattice perturbation theory. We determine the mixing pattern under renormalization of these operators…Demetrianos Gavriel, Haralambos Panagopoulos, Gregoris Spanoudes·May 31, 2024SaveLearn
Testing dynamical stabilization of Complex Langevin simulations of QCDWe study complex Langevin simulations of a toy model as well as QCD, supplemented with a dynamical stabilization (DS) term, which was proposed to regularize the complexified process at lower…Michael W. Hansen, Dénes Sexty·May 31, 2024SaveLearn
Lattice study on finite density QC2D towards zero temperatureWe investigate the phase structure and the equation of state (EoS) for dense two-color QCD (QC2D) at low temperature (T = 40 MeV, 324 lattice) for the purpose of extending our previous…Kei Iida, Etsuko Itou, Kotaro Murakami et al.·May 31, 2024SaveLearn
Lattice QCD calculation of the pion distribution amplitude with domain wall fermions at physical pion massWe present a direct lattice QCD calculation of the x-dependence of the pion distribution amplitude (DA), which is performed using the quasi-DA in large momentum effective theory on a domain-wall…Ethan Baker, Dennis Bollweg, Peter Boyle et al.·May 30, 2024SaveLearn
Neural Network Gauge Field Transformation for 4D SU(3) gauge fieldsWe construct neural networks that work for any Lie group and maintain gauge covariance, enabling smooth, invertible gauge field transformations. We implement these transformations for 4D SU(3)…Xiao-Yong Jin·May 30, 2024SaveLearn
GPU-accelerated Higher Representations of Wilson Fermions with HiRepWe are improving one of the available lattice software packages HiRep by adding GPU acceleration supporting highly-optimized simulations on both NVIDIA and AMD GPUs. HiRep allows lattice simulations…Sofie Martins, Erik Kjellgren, Emiliano Molinaro et al.·May 29, 2024SaveLearn
Accelerating Lattice QCD Simulations using GPUsSolving discretized versions of the Dirac equation represents a large share of execution time in lattice Quantum Chromodynamics (QCD) simulations. Many high-performance computing (HPC) clusters use…Tilmann Matthaei·May 29, 2024SaveLearn
Nucleon Helicity Parton Distribution Function in the Continuum Limit with Self-RenormalizationWe present the first lattice calculation of the nucleon isovector helicity parton distribution function (PDF) in the framework of large-momentum effective theory (LaMET) that uses the hybrid scheme…Jack Holligan, Huey-Wen Lin·May 28, 2024SaveLearn
Thermodynamic Potential of the Polyakov Loop in SU(3) Quenched Lattice QCDUsing SU(3) lattice QCD, we study for the first time the effective potential of the Polyakov loop P at finite temperature, i.e., the thermodynamic potential, in the…Hideo Suganuma, Hiroki Ohata, Masakiyo Kitazawa·May 27, 2024SaveLearn
Gribov copies in the quark propagatorWe study the impact of Gribov copies on the quark propagator in lattice 2-colour QCD. We find that the Gribov noise is comparable to the gauge noise for smaller volumes but becomes less significant…Gerhard Kalusche, Dale Lawlor, Jon-Ivar Skullerud·May 27, 2024SaveLearn
Generating configurations of increasing lattice size with machine learning and the inverse renormalization groupWe review recent developments of machine learning algorithms pertinent to the inverse renormalization group, which was originally established as a generative numerical method by Ron-Swendsen-Brandt…Dimitrios Bachtis·May 25, 2024SaveLearn
Near-threshold states in coupled DD-DD scattering from lattice QCDThe first determination of doubly-charmed isospin-0 coupled-channel DD-D D scattering amplitudes from lattice QCD is presented. The finite-volume spectrum is computed for three…Travis Whyte, David J. Wilson, Christopher E. Thomas·May 24, 2024SaveLearn
Deep learning lattice gauge theoriesMonte Carlo methods have led to profound insights into the strong-coupling behaviour of lattice gauge theories and produced remarkable results such as first-principles computations of hadron masses.…Anuj Apte, Anthony Ashmore, Clay Cordova et al.·May 23, 2024SaveLearn
Impact of gauge fixing precision on the continuum limit of non-local quark-bilinear lattice operatorsWe analyze the gauge fixing precision dependence of some non-local quark-blinear lattice operators interesting in computing parton physics for several measurements, using 5 lattice spacings ranging…Kuan Zhang, Yi-Kai Huo, Xiangdong Ji et al.·May 23, 2024SaveLearn
Uncovering gauge-dependent critical order-parameter correlations by a stochastic gauge fixing at O(N)* and Ising* continuous transitionsWe study the O(N)* transitions that occur in the 3D Z2-gauge N-vector model, and the analogous Ising* transitions occurring in the 3D Z2-gauge Higgs model,…Claudio Bonati, Andrea Pelissetto, Ettore Vicari·May 22, 2024SaveLearn
The optimization of paths in the R3,1 space time by Markov Chain Monte CarlosWe propose a method to obtain the optimal weight function of 9 paths in (3+1)D space-time whose length is less than or equal to 2× (6+2) lattice units. The factor 2 comes from inclusion of…Sadataka Furui, Serge Dos Santos·May 22, 2024SaveLearn
Block Encodings of Discrete Subgroups on Quantum ComputerWe introduce a block encoding method for mapping discrete subgroups to qubits on a quantum computer. This method is applicable to general discrete groups, including crystal-like subgroups such as…Henry Lamm, Ying-Ying Li, Jing Shu et al.·May 21, 2024SaveLearn
Chiral and deconfinement properties of the QCD crossover have a different volume and baryochemical potential dependenceThe crossover from hadronic to quark matter is understood to be both a deconfinement as well as a chiral symmetry restoring transition. Here, we study observables related to both aspects using…Szabolcs Borsanyi, Zoltan Fodor, Jana N. Guenther et al.·May 20, 2024SaveLearn
Digitization and subduction of SU(N) gauge theoriesThe simulation of lattice gauge theories on quantum computers necessitates digitizing gauge fields. One approach involves substituting the continuous gauge group with a discrete subgroup, but the…Benoît Assi, Henry Lamm·May 20, 2024SaveLearn