Simulation strategies for the massless lattice Schwinger model in the dual formulationThe dual form of the massless Schwinger model on the lattice overcomes the complex action problems from two sources: a topological term, as well as non-zero chemical potential, making these…Daniel Göschl, Christof Gattringer, Alexander Lehmann et al.·Aug 2, 2017SaveLearn
Multi-hadron-state contamination in nucleon observables from chiral perturbation theoryMulti-particle states with additional pions are expected to be a non-negligible source of the excited-state contamination in lattice simulations at the physical point. It is shown that baryon chiral…Oliver Bar·Aug 1, 2017SaveLearn
Heavy Flavors on the LatticeThe lattice QCD results on the hadron spectrum and weak transitions between hadrons are briefly reviewed. Hadrons containing heavy quarks c or b are considered. The focus is on the recent simulations…Sasa Prelovsek·Aug 1, 2017SaveLearn
Classical limit theorems and high entropy MIXMAX random number generatorWe investigate the interrelation between the distribution of stochastic fluctuations of independent random variables in probability theory and the distribution of time averages in deterministic…Hayk Poghosyan, Konstantin Savvidy, George Savvidy·Jul 31, 2017SaveLearn
Stochastic locality and master-field simulations of very large latticesIn lattice QCD and other field theories with a mass gap, the field variables in distant regions of a physically large lattice are only weakly correlated. Accurate stochastic estimates of the…Martin Lüscher·Jul 31, 2017SaveLearn
Wavelets and Lattice Field TheoryWhen continuous fields are expanded in a wavelet basis, a D-dimensional continuum action becomes a (D+1)-dimensional lattice action on the naively discretized Poincare-patch coordinates of an…Herbert Neuberger·Jul 30, 2017SaveLearn
Chiral symmetry constraints on resonant amplitudesWe discuss the impact of chiral symmetry constraints on the quark-mass dependence of meson resonance pole positions, which are encoded in non-perturbative parametrizations of meson scattering…Peter C. Bruns, Maxim Mai·Jul 27, 2017SaveLearn
Selected inversion as key to a stable Langevin evolution across the QCD phase boundaryWe present new results of full QCD at nonzero chemical potential. In PRD 92, 094516 (2015) the complex Langevin method was shown to break down when the inverse coupling decreases and enters the…Jacques Bloch, Olaf Schenk·Jul 27, 2017SaveLearn
Sanity check for NN bound states in lattice QCD with Lüscher's finite volume formula -- Exposing Symptoms of Fake Plateaux --A sanity check rules out certain types of obviously false results, but does not catch every possible error. After reviewing such a sanity check for NN bound states with the Lüscher's finite…Sinya Aoki, Takumi Doi, Takumi Iritani·Jul 27, 2017SaveLearn
SU(3) breaking and the pseudo-scalar spectrum in multi-taste QCDUsing the Sigma model to explore the lowest order pseudo-scalar spectrum with SU(3) breaking, this talk considers an additional exact "taste" symmetry to mimic species doubling. Rooting…Michael Creutz·Jul 26, 2017SaveLearn
QCD monopoles, abelian projections and gauge invarianceIt is shown that the creation of a monopole is a gauge invariant statement, based on topology. Creating a monopole is independent on the abelian projection in which it is created. This is fundamental…Adriano Di Giacomo·Jul 25, 2017SaveLearn
Nonperturbative renormalization of nonlocal quark bilinears for quasi-PDFs on the lattice using an auxiliary fieldQuasi-PDFs provide a path toward an ab initio calculation of parton distribution functions (PDFs) using lattice QCD. One of the problems faced in calculations of quasi-PDFs is the renormalization of…Jeremy Green, Karl Jansen, Fernanda Steffens·Jul 22, 2017SaveLearn
Distribution of the Dirac modes in QCDIt was established that distribution of the near-zero modes of the Dirac operator is consistent with the Chiral Random Matrix Theory (CRMT) and can be considered as a consequence of spontaneous…M. Catillo, L. Ya. Glozman·Jul 21, 2017SaveLearn
Efficient Basis Formulation for (1+1)-Dimensional SU(2) Lattice Gauge Theory: Spectral calculations with matrix product statesWe propose an explicit formulation of the physical subspace for a (1+1)-dimensional SU(2) lattice gauge theory, where the gauge degrees of freedom are integrated out. Our formulation is completely…Mari Carmen Bañuls, Krzysztof Cichy, J. Ignacio Cirac et al.·Jul 20, 2017SaveLearn
Mixed action with Borici-Creutz fermions on staggered seaMixed action lattice QCD with Borici-Creutz valence quarks on staggered sea is investigated. The counter terms in Borici-Creutz action are fixed nonperturbatively to restore the broken parity and…S. Basak, D. Chakrabarti, J. Goswami·Jul 20, 2017SaveLearn
Matter-Antimatter Coexistence Method for Finite Density QCDWe propose a "matter-antimatter coexistence method" for finite-density lattice QCD, aiming at a possible solution of the sign problem. In this method, we consider matter and anti-matter…Hideo Suganuma·Jul 19, 2017SaveLearn
Meson masses in electromagnetic fields with Wilson fermionsWe determine the light meson spectrum in QCD in the presence of background magnetic fields using quenched Wilson fermions. Our continuum extrapolated results indicate a monotonous reduction of the…Gunnar S. Bali, Bastian B. Brandt, Gergely Endrodi et al.·Jul 18, 2017SaveLearn
Effects of non-equilibrated topological charge distributions on pseudoscalar meson masses and decay constantsWe study the effects of failure to equilibrate the squared topological charge Q2 on lattice calculations of pseudoscalar masses and decay constants. The analysis is based on chiral perturbation…C. Bernard, D. Toussaint·Jul 18, 2017SaveLearn
Estimating the two-particle K-matrix for multiple partial waves and decay channels from finite-volume energiesAn implementation of estimating the two-to-two K-matrix from finite-volume energies based on the Lüscher formalism and involving a Hermitian matrix known as the "box matrix" is described.…Colin Morningstar, John Bulava, Bijit Singha et al.·Jul 18, 2017SaveLearn
Lattice simulation with the Majorana positivityWhile the sign problem of the Dirac fermion is conditioned by the semi-positivity of a determinant, that of the Majorana fermion is conditioned by the semi-positivity of a Pfaffian. We introduce one…Arata Yamamoto, Tomoya Hayata·Jul 18, 2017SaveLearn
Infrared fixed point of SU(2) gauge theory with six flavorsWe compute the running of the coupling in SU(2) gauge theory with six fermions in fundamental representation of the gauge group. We establish an infrared stable fixed point at strong coupling and…Viljami Leino, Kari Rummukainen, Joni M. Suorsa et al.·Jul 15, 2017SaveLearn
Masses and decay constants of D(s)* and B(s)* mesons with Nf = 2 + 1 + 1 twisted mass fermionsWe present a lattice calculation of the masses and decay constants of D(s)* and B(s)* mesons using the gauge configurations produced by the European Twisted Mass Collaboration (ETMC) with…V. Lubicz, A. Melis, S. Simula·Jul 14, 2017SaveLearn
Testing the threshold expansion for three-particle energies at fourth order in ϕ4 theoryA relativistic formalism for relating the the energies of the states of three scalar particles in finite volume to infinite volume scattering amplitudes has recently been developed. This formalism…Stephen R. Sharpe·Jul 13, 2017SaveLearn
Strange and charm HVP contributions to the muon (g - 2) including QED corrections with twisted-mass fermionsWe present a lattice calculation of the Hadronic Vacuum Polarization (HVP) contribution of the strange and charm quarks to the anomalous magnetic moment of the muon including leading-order…D. Giusti, V. Lubicz, G. Martinelli et al.·Jul 10, 2017SaveLearn
Stiff self-interacting string near QCD deconfinement pointWe compare the predictions of Nambu-Goto effective string model at two loop-order for the Casimir energy and the width of the quantum delocalization of the string to the corresponding quark-antiquark…A. Bakry, X. Chen, M. Deliyergiyev et al.·Jul 10, 2017SaveLearn