Deflated Multigrid Multilevel Monte CarloIn lattice QCD, the trace of the inverse of the discretized Dirac operator appears in the disconnected fermion loop contribution to an observable. As simulation methods get more and more precise,…Andreas Frommer, Gustavo Ramirez-Hidalgo·Nov 28, 2022SaveLearn
Glueball spectroscopy in lattice QCD using gradient flowRemoving ultraviolet noise from the gauge fields is necessary for glueball spectroscopy in lattice QCD. It is known that the Yang-Mills gradient flow method is an alternative approach instead of link…Keita Sakai, Shoichi Sasaki·Nov 28, 2022SaveLearn
Density of states techniques for fermion worldlinesWorldline representations were established as a powerful tool for studying bosonic lattice field theories at finite density. For fermions, however, the worldlines still may carry signs that originate…Christof Gattringer·Nov 28, 2022SaveLearn
Toward nuclear physics from lattice QCD on quantum computersOne of the ultimate missions of lattice QCD is to simulate atomic nuclei from the first principle of the strong interaction. This is an extremely hard task for the current computational technology,…Arata Yamamoto, Takumi Doi·Nov 26, 2022SaveLearn
Double parton distributions in the nucleon on the lattice: Flavor interference effectsInformation about double parton distributions (DPDs) can be obtained by calculating four-point functions on the lattice. We continue our study on the first DPD Mellin moment of the unpolarized proton…Christian Zimmermann, Daniel Reitinger·Nov 25, 2022SaveLearn
MRHS multigrid solver for Wilson-clover fermionsWe describe our implementation of a multigrid solver for Wilson-clover fermions, which increases parallelism by solving for multiple right-hand sides (MRHS) simultaneously. The solver is based on…Daniel Richtmann, Nils Meyer, Tilo Wettig·Nov 24, 2022SaveLearn
Hadrons at high temperature: an update from the FASTSUM collaborationWe present the most recent results from the FASTSUM collaboration for hadron properties at high temperature. This includes the temperature dependence of the light and charmed meson and baryon…Jon-Ivar Skullerud, Gert Aarts, Chris Allton et al.·Nov 24, 2022SaveLearn
Thermal QCD for non-perturbative renormalization of composite operatorsWe present our progresses in the use of the non-perturbative renormalization framework based on considering QCD at finite temperature with shifted and twisted (for quarks only) boundary conditions in…Matteo Bresciani, Mattia Dalla Brida, Leonardo Giusti et al.·Nov 24, 2022SaveLearn
Measurement of hadron masses in 2-color finite density QCDWe investigate hadron spectra in 2-color QCD using lattice simulation with Nf=2 at low temperature and finite density in which there appears not only the hadronic phase but also the superfluid…Kotaro Murakami, Daiki Suenaga, Kei Iida et al.·Nov 24, 2022SaveLearn
Dynamical fermions, centre vortices, and emergent phenomenaThe non-trivial ground-state vacuum fields of QCD form the foundation of matter. Here we examine the centre vortices identified within the ground-state fields of lattice QCD. We aim to understand the…Derek Leinweber, James Biddle, Waseem Kamleh et al.·Nov 24, 2022SaveLearn
All-mode Renormalization for Tensor Network with Stochastic NoiseIn usual (non-stochastic) tensor network calculations, the truncated singular value decomposition (SVD) is often used for approximating a tensor, and it causes systematic errors. By introducing…Erika Arai, Hiroshi Ohki, Shinji Takeda et al.·Nov 23, 2022SaveLearn
Static quark anti-quark interactions at non-zero temperature from lattice QCDWe present results on the in-medium interactions of static quark anti-quark pairs using realistic 2+1 HISQ flavor lattice QCD. Focus is put on the extraction of spectral information from Wilson line…Gaurang Parkar, Dibyendu Bala, Olaf Kaczmarek et al.·Nov 23, 2022SaveLearn
Isospin-breaking corrections to light-meson leptonic decays from lattice simulations at physical quark massesThe decreasing uncertainties in theoretical predictions and experimental measurements of several hadronic observables related to weak processes, which in many cases are now smaller than…Peter Boyle, Matteo Di Carlo, Felix Erben et al.·Nov 23, 2022SaveLearn
Learning trivializing flowsThe recent introduction of machine learning techniques, especially normalizing flows, for the sampling of lattice gauge theories has shed some hope on improving the sampling efficiency of the…David Albandea, Luigi Del Debbio, Pilar Hernández et al.·Nov 23, 2022SaveLearn
Compact QED: the photon propagator, confinement and positivity violation for the pure gauge theoryThe lattice Landau gauge photon propagator for the pure gauge theory is revisited using large lattices. For the confined case we show that it has an associated linearly growing potential, it has a…Orlando Oliveira, Lee C. Loveridge, Paulo J. Silva·Nov 22, 2022SaveLearn
Gradient flow scale setting with tree-level improvementLattice scales defined using gradient flow are typically very precise, while also easy to calculate. However, different definitions of flows and operators can differ significantly, suggesting…Christian Schneider, Anna Hasenfratz, Oliver Witzel·Nov 22, 2022SaveLearn
Confined Charged Particles in C-periodic VolumesCharged particles in an Abelian Coulomb phase are non-local infraparticles that are surrounded by a cloud of soft photons which extends to infinity. Gauss' law prevents the existence of charged…G. Kanwar, A. Mariani, J. C. Pinto Barros et al.·Nov 22, 2022SaveLearn
Toward N to Nπ matrix elements from lattice QCDQCD matrix elements of axial and vector currents between nucleons are required for the Monte Carlo reconstruction of the energy of neutrinos that are detected in long baseline oscillation experiments…Lorenzo Barca, Gunnar Bali, Sara Collins·Nov 22, 2022SaveLearn
Three-gluon vertex in Landau-gauge from quenched-lattice QCD in general kinematicsWe report on a novel and extensive lattice QCD analysis for the three-gluon vertex from quenched lattice-QCD simulations. Using standard Wilson action, we have computed the three-gluon vertex beyond…F. Pinto-Gomez, F. de Soto·Nov 22, 2022SaveLearn
Mass Renormalization of the Schwinger Model with Wilson and Staggered Fermions in the Hamiltonian Lattice FormulationLattice computations in the Hamiltonian formulation have so far mainly focused on staggered fermions. In these proceedings, we study Wilson fermions in the Hamiltonian formulation and propose a new…Takis Angelides, Lena Funcke, Karl Jansen et al.·Nov 22, 2022SaveLearn
Phase diagram of QCD in strong background magnetic fieldWe discuss the phase diagram of QCD in the presence of a strong background magnetic field, providing numerical evidence, based on lattice simulations of QCD with 2+1 flavours and physical quark…Massimo D'Elia, Lorenzo Maio, Francesco Sanfilippo et al.·Nov 22, 2022SaveLearn
Non-perturbative insights into the spectral properties of QCD at finite temperatureIn quantum field theories at finite temperature spectral functions describe how particle systems behave in the presence of a thermal medium. Although data from lattice simulations can in principle be…Peter Lowdon, Owe Philipsen·Nov 22, 2022SaveLearn
The muon anomalous magnetic moment: is the lattice spacing small enough?We present new results for the light-quark connected part of the leading order hadronic-vacuum-polarization (HVP) contribution to the muon anomalous magnetic moment, using 2+1+1 staggered fermions.…Christopher Aubin, Thomas Blum, Maarten Golterman et al.·Nov 22, 2022SaveLearn
Inclusive semileptonic B-decays from lattice QCDWe present the lattice QCD calculation of inclusive semileptonic Bs-meson decays. We follow a recently proposed method, which is based on the extraction of smeared spectral densities from…Paolo Gambino, Shoji Hashimoto, Sandro Mächler et al.·Nov 21, 2022SaveLearn
On chiral spin symmetry and the QCD phase diagramRecently, an approximate SU(4) chiral spin-flavour symmetry was observed in multiplet patterns of QCD meson correlation functions, in a temperature range above the chiral crossover. This symmetry…Owe Philipsen, Leonid Ya. Glozman, Peter Lowdon et al.·Nov 21, 2022SaveLearn