Type of dual superconductivity for the SU(2) Yang--Mills theoryWe investigate the type of dual superconductivity responsible for quark confinement. For this purpose, we solve the field equations of the U(1) gauge-scalar model to obtain the static vortex…Shogo Nishino, Kei-Ichi Kondo, Akihiro Shibata et al.·Mar 25, 2019SaveLearn
Type of dual superconductivity for SU(2) and SU(3) Yang--Mills theoriesWe investigate the type of dual superconductivity responsible for quark confinement. For this purpose, we solve the field equations of the U(1) Abelian--Higgs model to obtain the static vortex…Akihiro Shibata, Kei-Ichi Kondo, Shogo Nishino et al.·Mar 25, 2019SaveLearn
Color flux tubes in SU(3) Yang-Mills theory: an investigation with the connected correlatorIn this work we perform an investigation of the flux tube between two static color sources in four dimensional SU(3) Yang-Mills theory, using the so called connected correlator. Contrary to most…Nico Battelli, Claudio Bonati·Mar 25, 2019SaveLearn
Electromagnetic finite-size effects to the hadronic vacuum polarizationIn order to reduce the current hadronic uncertainties in the theory prediction for the anomalous magnetic moment of the muon, lattice calculations need to reach sub-percent accuracy on the…J. Bijnens, J. Harrison, N. Hermansson-Truedsson et al.·Mar 25, 2019SaveLearn
Frequency-splitting estimators of single-propagator tracesSingle-propagator traces are the most elementary fermion Wick contractions which occur in numerical lattice QCD, and are usually computed by introducing random-noise estimators to profit from volume…Leonardo Giusti, Tim Harris, Alessandro Nada et al.·Mar 25, 2019SaveLearn
A note on the vacuum structure to lattice Euclidean quantum gravityIt is shown that the ground state or vacuum to the lattice Euclidean quantum gravity is significantly different from the ground states to the well-known vacua in QED, QCD, et cetera. In the case of…S. N. Vergeles·Mar 24, 2019SaveLearn
Lattice calculation of the pion transition form factor with Nf=2+1 Wilson quarksWe present a lattice QCD calculation of the double-virtual neutral pion transition form factor, with the goal to cover the kinematic range relevant to hadronic light-by-light scattering in the muon…Antoine Gérardin, Harvey B. Meyer, Andreas Nyffeler·Mar 22, 2019SaveLearn
General Methods for Digital Quantum Simulation of Gauge TheoriesA general scheme is presented for simulating gauge theories, with matter fields, on a digital quantum computer. A Trotterized time-evolution operator that respects gauge symmetry is constructed, and…Henry Lamm, Scott Lawrence, Yukari Yamauchi·Mar 20, 2019SaveLearn
Publicising Lattice Field Theory through VisualisationThe gluon field configurations that form the foundation of every lattice QCD calculation contain a rich diversity of emergent nonperturbative structure. Visualisations of these phenomena not only…James Biddle, Josh Charvetto, Waseem Kamleh et al.·Mar 20, 2019SaveLearn
Light-cone distribution amplitudes of pseudoscalar mesons from lattice QCDWe present the first lattice determination of the two lowest Gegenbauer moments of the leading-twist pion and kaon light-cone distribution amplitudes with full control of all errors. The calculation…Gunnar S. Bali, Vladimir M. Braun, Simon Bürger et al.·Mar 19, 2019SaveLearn
The twisted gradient flow coupling at one loopWe compute the one-loop running of the SU(N) 't Hooft coupling in a finite volume gradient flow scheme using twisted boundary conditions. The coupling is defined in terms of the energy density…Eduardo I. Bribian, Margarita Garcia Perez·Mar 18, 2019SaveLearn
Visualizations of Centre Vortex Structure in Lattice SimulationsThe structure of centre vortices in SU(3) gauge-field configurations is examined through modern visualization techniques. Centre vortices are identified through gauge transformations maximizing the…James C. Biddle, Waseem Kamleh, Derek B. Leinweber·Mar 18, 2019SaveLearn
Janossy densities for chiral random matrix ensembles and their applications to two-color QCDWe compute individual distributions of low-lying eigenvalues of massive chiral random matrix ensembles by the Nyström-type quadrature method for evaluating the Fredholm determinant and Pfaffian that…Hiroyuki Fuji, Issaku Kanamori, Shinsuke M. Nishigaki·Mar 17, 2019SaveLearn
Disconnected Loop Subtraction Methods in Lattice QCDLattice QCD calculations of disconnected quark loop operators are extremely computer time-consuming to evaluate. To compute these diagrams using lattice techniques, one generally uses stochastic…Suman Baral, Travis Whyte, Walter Wilcox et al.·Mar 16, 2019SaveLearn
Sigma models on quantum computersWe formulate a discretization of sigma models suitable for simulation by quantum computers. Space is substituted by a lattice, as usually done in lattice field theory, while the target space (a…Andrei Alexandru, Paulo F. Bedaque, Henry Lamm et al.·Mar 15, 2019SaveLearn
Nucleon axial, scalar, and tensor charges using lattice QCD at the physical pion massWe report on lattice QCD calculations of the nucleon isovector axial, scalar, and tensor charges. Our calculations are performed on two 2+1-flavor ensembles generated using a 2-HEX-smeared…Nesreen Hasan, Jeremy Green, Stefan Meinel et al.·Mar 15, 2019SaveLearn
On the extraction of spectral densities from lattice correlatorsHadronic spectral densities are important quantities whose non-perturbative knowledge allows for calculating phenomenologically relevant observables, such as inclusive hadronic cross-sections and…Martin Hansen, Alessandro Lupo, Nazario Tantalo·Mar 15, 2019SaveLearn
Extraction of bare Form Factors for B s K ν Decays in non-perturbative HQETWe discuss the extraction of the ground state K ( p)|Vμ(0)|B ( 0) matrix elements from Euclidean lattice correlation functions. The emphasis is on the…Felix Bahr, Debasish Banerjee, Fabio Bernardoni et al.·Mar 14, 2019SaveLearn
Fate of the η' in the Quark Gluon PlasmaIn this paper we study the η' in Nf=2+1+1 lattice QCD simulations at finite temperature. Results are obtained from the analysis of the gluonic defined topological charge density correlator…Andrey Yu. Kotov, Maria Paola Lombardo, Anton M. Trunin·Mar 13, 2019SaveLearn
Localisation in 2+1 dimensional SU(3) pure gauge theory at finite temperatureI study the localisation properties of low Dirac eigenmodes in 2+1 dimensional SU(3) pure gauge theory, both in the low-temperature, confined and chirally-broken phase and in the high-temperature,…Matteo Giordano·Mar 12, 2019SaveLearn
Chiral phase transition temperature in (2+1)-Flavor QCDWe present a lattice QCD based determination of the chiral phase transition temperature in QCD with two degenerate, massless quarks and a physical strange quark mass. We propose and calculate two…H. -T. Ding, P. Hegde, O. Kaczmarek et al.·Mar 12, 2019SaveLearn
Light and strange quark masses from Nf=2+1 simulations with Wilson fermionsWe present a nearly final analysis of the u/d and s quark masses, extracted using the PCAC quark masses reported in [PRD 95 (2017) 074504]. The data is based on the CLS Nf = 2 + 1 simulations…M. Bruno, I. Campos, J. Koponen et al.·Mar 11, 2019SaveLearn
Open-Boundary Conditions in the Deconfined PhaseIn 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 extent of the…Adrien Florio, Olaf Kaczmarek, Lukas Mazur·Mar 7, 2019SaveLearn
Applying Complex Langevin Simulations to Lattice QCD at Finite DensityWe study the use of the complex-Langevin equation (CLE) to simulate lattice QCD at a finite chemical potential (μ) for quark-number, which has a complex fermion determinant that prevents the use of…J. B. Kogut, D. K. Sinclair·Mar 6, 2019SaveLearn
In-medium heavy quarkonium from lattice NRQCDWe present the final results from a multi-year study of the in-medium spectral properties of heavy quarkonium bound states on the lattice. In this work we combine high statistics Nf=2+1 ensembles…Seyong Kim, Peter Petreczky, Alexander Rothkopf·Mar 6, 2019SaveLearn