On a modification method of Lefschetz thimblesThe QCD at finite density is not well understood yet, where standard Monte Carlo simulation suffers from the sign problem. In order to overcome the sign problem, the method of Lefschetz thimble has…Shoichiro Tsutsui, Takahiro M. Doi·Oct 18, 2017SaveLearn
Spectrum of QCD at Finite Isospin DensityWe study the phase diagram of QCD at finite isospin density using two flavors of staggered quarks. We investigate the low temperature region of the phase diagram where we find a pion condensation…Philipp Scior, Lorenz von Smekal, Dominik Smith·Oct 17, 2017SaveLearn
Two-baryon systems from HAL QCD method and the mirage in the temporal correlation of the direct methodBoth direct and HAL QCD methods are currently used to study the hadron interactions in lattice QCD. In the direct method, the eigen-energy of two-particle is measured from the temporal correlation.…Takumi Iritani, for HAL QCD Collaboration·Oct 17, 2017SaveLearn
Nucleon axial coupling from Lattice QCDWe present state-of-the-art results from a lattice QCD calculation of the nucleon axial coupling, gA, using Möbius Domain-Wall fermions solved on the dynamical Nf = 2 + 1 + 1 HISQ ensembles…Chia Cheng Chang, Amy Nicholson, Enrico Rinaldi et al.·Oct 17, 2017SaveLearn
Thermal Simulations, Open Boundary Conditions and SwitchesSU(N) gauge theories on compact spaces have a non-trivial vacuum structure characterized by a countable set of topological sectors and their topological charge. In lattice simulations, every…Yannis Burnier, Adrien Florio, Olaf Kaczmarek et al.·Oct 17, 2017SaveLearn
Finite continuum quasi distributions from lattice QCDWe present a new approach to extracting continuum quasi distributions from lattice QCD. Quasi distributions are defined by matrix elements of a Wilson-line operator extended in a spatial direction,…Christopher Monahan, Kostas Orginos·Oct 17, 2017SaveLearn
The topological properties of QCD at high temperature: problems and perspectivesLattice computations are the only first principle method capable of quantitatively assessing the topological properties of QCD at high temperature, however the numerical determination of the…Claudio Bonati·Oct 17, 2017SaveLearn
Computation of parton distributions from the quasi-PDF approach at the physical pointWe show the first results for parton distribution functions within the proton at the physical pion mass, employing the method of quasi-distributions. In particular, we present the matrix elements for…Constantia Alexandrou, Simone Bacchio, Krzysztof Cichy et al.·Oct 17, 2017SaveLearn
Testing the holographic principle using lattice simulationsThe lattice studies of maximally supersymmetric Yang-Mills (MSYM) theory at strong coupling and large N is important for verifying gauge/gravity duality. Due to the progress made in the last decade,…Raghav G. Jha, Simon Catterall, David Schaich et al.·Oct 17, 2017SaveLearn
Ergodicity of the LLR method for the Density of StatesThe LLR method is a novel algorithm that enables us to evaluate the density of states in lattice gauge theory. We present our study of the ergodicity properties of the LLR algorithm for the model of…Guido Cossu, Biagio Lucini, Roberto Pellegrini et al.·Oct 17, 2017SaveLearn
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.·Oct 17, 2017SaveLearn
Charmonia in moving framesLattice simulation of charmonium resonances with non-zero momentum provides additional information on the two-meson scattering matrices. However, the reduced rotational symmetry in a moving frame…S. Prelovsek, G. Bali, S. Collins et al.·Oct 17, 2017SaveLearn
Charm quark effects on the strong coupling extracted from the static forceWe compute the fermionic contribution to the strong coupling αqq extracted from the static force in Lattice QCD up to order g4 in perturbation theory. This allows us to subtract the leading…Salvatore Cali, Francesco Knechtli, Tomasz Korzec et al.·Oct 17, 2017SaveLearn
Extracting the Single-Particle Gap in Carbon Nanotubes with Lattice Quantum Monte CarloWe show how lattice Quantum Monte Carlo simulations can be used to calculate electronic properties of carbon nanotubes in the presence of strong electron-electron correlations. We employ the path…Evan Berkowitz, Christopher Koerber, Stefan Krieg et al.·Oct 17, 2017SaveLearn
Multigrid accelerated simulations for Twisted Mass fermionsSimulations at physical quark masses are affected by the critical slowing down of the solvers. Multigrid preconditioning has proved to deal effectively with this problem. Multigrid accelerated…Simone Bacchio, Constantia Alexandrou, Jacob Finkerath·Oct 17, 2017SaveLearn
Improved convergence of Complex Langevin simulationsThe sign problem appears in lattice QCD as soon as a non-zero chemical potential is introduced. This prevents direct simulations to determine the phase structure of the strongly interacting matter.…Felipe Attanasio, Benjamin Jäger·Oct 17, 2017SaveLearn
An Alternative Lattice Field Theory Formulation Inspired by Lattice Supersymmetry -Summary of the Formulation-We propose a lattice field theory formulation which overcomes some fundamental difficulties in realizing exact supersymmetry on the lattice. The Leibniz rule for the difference operator can be…Alessandro D'Adda, Noboru Kawamoto, Jun Saito·Oct 17, 2017SaveLearn
Large N scaling and factorization in SU(N) Yang-Mills theoryWe present results for Wilson loops smoothed with the Yang-Mills gradient flow and matched through the scale t0. They provide renormalized and precise operators allowing to test the 1/N2…Miguel García Vera, Rainer Sommer·Oct 17, 2017SaveLearn
Anderson localization in sigma modelsIn QCD above the chiral restoration temperature there exists an Anderson transition in the fermion spectrum from localized to delocalized modes. We investigate whether the same holds for nonlinear…Falk Bruckmann, Jacob Wellnhofer·Oct 16, 2017SaveLearn
Λc N interaction from lattice QCD and its application to Λc hypernucleiThe interaction between Λc and a nucleon (N) is investigated by employing the HAL QCD method in the (2+1)-flavor lattice QCD on a (2.9~fm)3 volume at mπ 410,~570,~700 MeV.…Takaya Miyamoto, Sinya Aoki, Takumi Doi et al.·Oct 16, 2017SaveLearn
Electromagnetic corrections to the hadronic vacuum polarization of the photon within QED L and QED MWe compute the leading QED corrections to the hadronic vacuum polarization (HVP) of the photon, relevant for the determination of leptonic anomalous magnetic moments, a. We work in the…Andrea Bussone, Michele Della Morte, Tadeusz Janowski·Oct 16, 2017SaveLearn
Gluon and ghost correlation functions of 2-color QCD at finite density2-color QCD, i. e. QCD with the gauge group SU(2), is the simplest non-Abelian gauge theory without sign problem at finite quark density. Therefore its study on the lattice is a benchmark for other…Ouraman Hajizadeh, Tamer Boz, Axel Maas et al.·Oct 16, 2017SaveLearn
Getting even with CLEIn the landscape of approaches toward the simulation of Lattice Models with complex action the Complex Langevin (CL) appears as a straightforward method with a simple, well defined setup. Its…Gert Aarts, Kirill Boguslavski, Manuel Scherzer et al.·Oct 16, 2017SaveLearn
Calm Multi-Baryon OperatorsOutstanding problems in nuclear physics require input and guidance from lattice QCD calculations of few baryons systems. However, these calculations suffer from an exponentially bad signal-to-noise…Evan Berkowitz, Amy Nicholson, Chia Cheng Chang et al.·Oct 16, 2017SaveLearn
Equation of State in 2+1 Flavor QCD at High TemperaturesWe calculate the Equation of State at high temperatures in 2+1 flavor QCD using the highly improved staggered quark action. We study the lattice spacing dependence of the pressure at high…A. Bazavov, P. Petreczky, J. H. Weber·Oct 13, 2017SaveLearn