Gauge-equivariant neural networks as preconditioners in lattice QCDWe demonstrate that a state-of-the art multi-grid preconditioner can be learned efficiently by gauge-equivariant neural networks. We show that the models require minimal re-training on different…Christoph Lehner, Tilo Wettig·Feb 10, 2023SaveLearn
Magnetic catalysis in the (2+1)-dimensional Gross-Neveu modelWe study the Gross-Neveu model in 2+1 dimensions in an external magnetic field B. We first summarize known mean-field results, obtained in the limit of large flavor number Nf, before…Julian J. Lenz, Michael Mandl, Andreas Wipf·Feb 10, 2023SaveLearn
Schwinger pair creation with the backreaction in 3 + 1 dimensionsIn this work, I analyze the structure of the QED spacetime lattice and review the Schwinger pair creation process from a thermodynamic point of view. This viewpoint enables the dynamical mean-field…Weitao Liu·Feb 10, 2023SaveLearn
Quasi-degenerate baryon energy states, the Feynman--Hellmann theorem and transition matrix elementsThe standard method for determining matrix elements in lattice QCD requires the computation of three-point correlation functions. This has the disadvantage of requiring two large time separations:…M. Batelaan, K. U. Can, R. Horsley et al.·Feb 9, 2023SaveLearn
Lattice Supersymmetry and HolographyOver the last twenty years, work based on lattice supersymmetry has generated many new results and insights into the non-perturbative nature of string theory, quantum black holes, and gravity. This…Anosh Joseph·Feb 9, 2023SaveLearn
Doubly Charmed Tetraquark T+cc from Lattice QCD near Physical PointThe doubly charmed tetraquark T+cc recently discovered by the LHCb Collaboration is studied on the basis of (2+1)-flavor lattice QCD simulations of the D*D system with nearly physical pion…Yan Lyu, Sinya Aoki, Takumi Doi et al.·Feb 9, 2023SaveLearn
Euclidean Quantum Field Theory from Variational DynamicsA variational phase space is constructed for a system of fields on Euclidean space with periodic boundary conditions. An extended action functional is defined such that the Euler-Lagrange equations…Brenden McDearmon·Feb 4, 2023SaveLearn
RI/(S)MOM renormalizations of overlap quark bilinears with different levels of hypercubic smearingOn configurations with 2+1-flavor dynamical domain-wall fermions, we calculate the RI/(S)MOM renormalization constants (RC) of overlap quark bilinears. Hypercubic (HYP) smearing is used to construct…Yujiang Bi, Ying Chen, Ming Gong et al.·Feb 3, 2023SaveLearn
Methods for high-precision determinations of radiative-leptonic decay form factors using lattice QCDWe present a study of lattice-QCD methods to determine the relevant hadronic form factors for radiative leptonic decays of pseudoscalar mesons. We provide numerical results for $Ds+ + …Davide Giusti, Christopher F. Kane, Christoph Lehner et al.·Feb 2, 2023SaveLearn
Emergent phenomena from centre vortices in dynamical QCDQuark confinement and dynamical chiral symmetry breaking are two of the most important emergent properties of the theory of quantum chromodynamics. We review recent results studying centre vortices…Waseem Kamleh, James Biddle, Derek B. Leinweber et al.·Feb 2, 2023SaveLearn
Evolving the COLA software libraryCOLA is a software library for lattice QCD, written in a combination of modern Fortran and C/C++. Intel and NVIDIA have dominated the HPC domain in the years leading up to the exascale era, but the…Waseem Kamleh·Feb 2, 2023SaveLearn
Review on Quantum Computing for Lattice Field TheoryIn these proceedings, we review recent advances in applying quantum computing to lattice field theory. Quantum computing offers the prospect to simulate lattice field theories in parameter regimes…Lena Funcke, Tobias Hartung, Karl Jansen et al.·Feb 1, 2023SaveLearn
Boundary states and Non-Abelian Casimir effect in lattice Yang-Mills theoryUsing first-principle numerical simulations, we investigate the Casimir effect in zero-temperature SU(3) lattice gauge theory in 3+1 spacetime dimensions. The Casimir interaction between perfect…Maxim N. Chernodub, Vladimir A. Goy, Alexander V. Molochkov et al.·Feb 1, 2023SaveLearn
Fighting the sign problem in a chiral random matrix model with contour deformationsWe studied integration contour deformations in the chiral random matrix theory of Stephanov with the goal of alleviating the finite-density sign problem. We considered simple ans\"atze for the…Matteo Giordano, Attila Pasztor, David Pesznyak et al.·Jan 30, 2023SaveLearn
The I = 1/2 and 3/2 K-π scattering length with domain wall fermions at physical pion mass with all-to-all propagatorsWe present our calculations for the I = 1/2 and 3/2 K-π s-wave scattering length with physical quark masses, extracted from the interaction energy of Euclidean two-point functions. We use the…Nils Asmussen, Felix Erben, Jonathan Flynn et al.·Jan 30, 2023SaveLearn
2022 Update on K with lattice QCD inputsWe present recent updates for K determined directly from the standard model (SM) with lattice QCD inputs such as BK, |Vcb|, |Vus|, 0, 2, LD,…Sunghee Kim, Sunkyu Lee, Weonjong Lee et al.·Jan 29, 2023SaveLearn
Eigenvalues of the QCD Dirac matrix with improved staggered quarks in the continuum limitWe calculate the eigenmodes of the Highly Improved Staggered Quark (HISQ) matrix near the chiral crossover transition in QCD with 2+1 flavors with the aim to gain more insights into its temperature…Olaf Kaczmarek, Ravi Shanker, Sayantan Sharma·Jan 27, 2023SaveLearn
The quark propagator and quark-gluon vertex from lattice QCD at finite temperatureThe quark-gluon vertex is an important object of QCD. Studies have shown that this quantity is relevant for the dynamical chiral symmetry breaking pattern in the vacuum. The goal of our project is to…Jesuel Marques, Gerhard Kalusche, Tereza Mendes et al.·Jan 25, 2023SaveLearn
Precision Control in Lattice Calculation of x-dependent Pion Distribution AmplitudeWe present a new Bjorken x-dependence analysis of a previous lattice quantum chromodynamics data for the pion distribution amplitude from MILC configurations with three lattice spacing…Jack Holligan, Xiangdong Ji, Huey-Wen Lin et al.·Jan 25, 2023SaveLearn
Recent Results from the FASTSUM CollaborationThe FASTSUM Collaboration has developed a comprehensive research programme in thermal QCD using 2+1 flavour, anisotropic ensembles. In this talk, we summarise some of our recent results including…Chris Allton, Gert Aarts, Ryan Bignell et al.·Jan 24, 2023SaveLearn
Robustness of Gauge Digitization to Quantum NoiseQuantum noise limits the use of quantum memory in high energy physics simulations. In particular, it breaks the gauge symmetry of stored quantum states. We examine this effect for abelian and…Erik J. Gustafson, Henry Lamm·Jan 24, 2023SaveLearn
A Quenched Exploration of Heavy Quark Moments and their Perturbative ExpansionThe parametric error on the QCD-coupling can be a dominant source of uncertainty in several important observables. One way to extract the coupling is to compare high order perturbative computations…Leonardo Chimirri·Jan 24, 2023SaveLearn
New conjecture on exact Dirac zero-modes of lattice fermionsWe propose a new conjecture on the relation between the species doubling of lattice fermions and the topology of manifold on which the fermion action is defined. Our conjecture claims that the…Jun Yumoto, Tatsuhiro Misumi·Jan 24, 2023SaveLearn
Isospin 0 and 2 two-pion scattering at physical pion mass using all-to-all propagators with periodic boundary conditions in lattice QCDA study of two-pion scattering for the isospin channels, I=0 and I=2, using lattice QCD is presented. M\"obius domain wall fermions on top of the Iwasaki-DSDR gauge action for gluons with…Thomas Blum, Peter A. Boyle, Mattia Bruno et al.·Jan 23, 2023SaveLearn
B-meson semileptonic decays with highly improved staggered quarksWe present an update of the Fermilab Lattice and MILC Collaborations project to compute the form factors for semileptonic B(s)-meson decays. Our calculation uses the highly improved staggered…Andrew Lytle, Carleton DeTar, Aida El-Khadra et al.·Jan 22, 2023SaveLearn