A numerical method to compute derivatives of functions of large complex matrices and its application to the overlap Dirac operator at finite chemical potentialWe present a method for the numerical calculation of derivatives of functions of general complex matrices. The method can be used in combination with any algorithm that evaluates or approximates the…M. Puhr, P. V. Buividovich·Apr 27, 2016SaveLearn
An implementation of hybrid parallel CUDA code for the hyperonic nuclear forcesWe present our recent effort to develop a GPGPU program to calculate 52 channels of the Nambu-Bethe-Salpeter (NBS) wave functions in order to study the baryon interactions, from nucleon-nucleon to…Hidekatsu Nemura, for HAL QCD Collaboration·Apr 27, 2016SaveLearn
Quark-hadron phase structure, thermodynamics and magnetization of QCD matterSU(3) Polyakov linear-sigma model (PLSM) is systematically implemented to characterize the quark-hadron phase structure and to determine various thermodynamic quantities and magnetization of the…Abdel Nasser Tawfik, Abdel Magied Diab, M. T. Hussein·Apr 26, 2016SaveLearn
Gauge cooling for the singular-drift problem in the complex Langevin method --a test in Random Matrix Theory for finite density QCDRecently, the complex Langevin method has been applied successfully to finite density QCD either in the deconfinement phase or in the heavy dense limit with the aid of a new technique called the…Keitaro Nagata, Jun Nishimura, Shinji Shimasaki·Apr 26, 2016SaveLearn
Lattice constraints on the thermal photon rateWe estimate the photon production rate from an SU(3) plasma at temperatures of about 1.1Tc and 1.3Tc. Lattice results for the vector current correlator at spatial momenta k ~ (2-6)T are extrapolated…J. Ghiglieri, O. Kaczmarek, M. Laine et al.·Apr 26, 2016SaveLearn
Up and down quark masses and corrections to Dashen's theorem from lattice QCD and quenched QEDIn a previous letter (arXiv:1306.2287) we determined the isospin mass splittings of the baryon octet from a lattice calculation based on quenched QED and Nf=2+1 QCD simulations with 5 lattice…Z. Fodor, C. Hoelbling, S. Krieg et al.·Apr 25, 2016SaveLearn
Numerical Evaluation of the Bose-Ghost Propagator in Minimal Landau Gauge on the LatticeWe present numerical details of the evaluation of the so-called Bose-ghost propagator in lattice minimal Landau gauge, for the SU(2) case in four Euclidean dimensions. This quantity has been proposed…Attilio Cucchieri, Tereza Mendes·Apr 24, 2016SaveLearn
Behavior and finite-size effects of the sixth order cumulant in the three-dimensional Ising universality classThe high-order cumulants of conserved charges are suggested to be sensitive observables to search for the critical point of Quantum Chromodynamics (QCD). This has been calculated to the sixth order…Xue Pan, Li-Zhu Chen, Yuan-Fang Wu·Apr 23, 2016SaveLearn
Thermal dilepton rates and electrical conductivity of the QGP from the latticeWe investigate the temperature dependence of the thermal dilepton rate and the electrical conductivity of the gluon plasma at temperatures of 1.1Tc, 1.3Tc and 1.5Tc in quenched QCD. Making…Heng-Tong Ding, Olaf Kaczmarek, Florian Meyer·Apr 22, 2016SaveLearn
Proof of the renormalizability of the gradient flowWe give an alternative perturbative proof of the renormalizability of the system defined by the gradient flow and the fermion flow in vector-like gauge theories.Kenji Hieda, Hiroki Makino, Hiroshi Suzuki·Apr 21, 2016SaveLearn
Non-perturbative renormalization of the axial current in Nf = 3 lattice QCD with Wilson fermions and tree-level improved gauge actionWe non-perturbatively determine the renormalization factor of the axial vector current in lattice QCD with Nf=3 flavors of Wilson-clover fermions and the tree-level Symanzik-improved gauge action.…John Bulava, Michele Della Morte, Jochen Heitger et al.·Apr 20, 2016SaveLearn
I=1 and I=2 π-π scattering phase shifts from Nf = 2+1 lattice QCDThe I=1 p-wave and I=2 s-wave elastic π-π scattering amplitudes are calculated from a first-principles lattice QCD simulation using a single ensemble of gauge field configurations with…John Bulava, Brendan Fahy, Ben Hörz et al.·Apr 19, 2016SaveLearn
Jarzynski's theorem for lattice gauge theoryJarzynski's theorem is a well-known equality in statistical mechanics, which relates fluctuations in the work performed during a non-equilibrium transformation of a system, to the free-energy…Michele Caselle, Gianluca Costagliola, Alessandro Nada et al.·Apr 19, 2016SaveLearn
What lattice theorists can do for superstring/M-theoryThe gauge/gravity duality provides us with nonperturbative formulation of superstring/M-theory. Although inputs from gauge theory side are crucial for answering many deep questions associated with…Masanori Hanada·Apr 19, 2016SaveLearn
Exotic vector charmonium and its leptonic decay widthWe propose a novel type of interpolating field operators, which manifests the hybrid-like configuration that the charm quark-antiquark pair recoils against gluonic degrees of freedom. A heavy vector…Ying Chen, Wei-Feng Chiu, Ming Gong et al.·Apr 12, 2016SaveLearn
Interplay between sign problem and Z3 symmetry in three-dimensional Potts modelWe construct four kinds of Z3-symmetric three-dimentional (3-d) Potts models, each with different number of states at each site on a 3-d lattice, by extending the 3-d three-state Potts model.…Takehiro Hirakida, Hiroaki Kouno, Junichi Takahashi et al.·Apr 11, 2016SaveLearn
Density distributions in the B mesonWe report on a two-flavor lattice QCD study of the axial, charge and matter distributions of the B meson and its first radial excitation. As our framework is the static limit of Heavy Quark…Benoît Blossier, Antoine Gérardin·Apr 11, 2016SaveLearn
A Euclidean Lattice Formulation of D=5 Maximally Supersymmetric Yang-Mills TheoryWe construct lattice action for five-dimensional maximally supersymmetric Yang-Mills theory. This supersymmetric lattice formulation can be used to explore the non-perturbative regime of the…Anosh Joseph·Apr 10, 2016SaveLearn
Anderson Localization in high temperature QCD: background configuration properties and Dirac eigenmodesWe investigate the properties of the background gauge field configurations that act as disorder for the Anderson localization mechanism in the Dirac spectrum of QCD at high temperatures. We compute…Guido Cossu, Shoji Hashimoto·Apr 4, 2016SaveLearn
Fast Estimator of jacobians in Monte Carlo Integration on Lefschetz ThimblesA solution to the sign problem is the so-called "Lefschetz thimble approach" where the domain of integration for field variables in the path integral is deformed from the real axis to a…Andrei Alexandru, Gokce Basar, Paulo F. Bedaque et al.·Apr 4, 2016SaveLearn
Lattice Gauge Theories and Spin ModelsThe Wegner Z2 gauge theory-Z2 Ising spin model duality in (2+1) dimensions is revisited and derived through a series of canonical transformations. The Kramers-Wannier duality is similarly…Manu Mathur, T. P. Sreeraj·Apr 1, 2016SaveLearn
An Anderson-like model of the QCD chiral transitionWe study the problems of chiral symmetry breaking and eigenmode localisation in finite-temperature QCD by looking at the lattice Dirac operator as a random Hamiltonian. We recast the staggered Dirac…Matteo Giordano, Tamas G. Kovacs, Ferenc Pittler·Mar 31, 2016SaveLearn
Tensor renormalization group analysis of CP(N-1) modelWe apply the higher-order tensor renormalization group to the lattice CP(N-1) model in two dimensions. A tensor network representation of the CP(N-1) model in the presence of the θ term is…Hikaru Kawauchi, Shinji Takeda·Mar 31, 2016SaveLearn
Relative weights approach to SU(3) gauge theories with dynamical fermions at finite densityWe derive effective Polyakov line actions for SU(3) gauge theories with staggered dynamical fermions, for a small sample of lattice couplings, lattice actions, and lattice extensions in the time…Roman Höllwieser, Jeff Greensite·Mar 31, 2016SaveLearn
Test for a universal behavior of Dirac eigenvalues in the complex Langevin methodWe apply the complex Langevin (CL) method to a chiral random matrix theory (ChRMT) at non-zero chemical potential and study the nearest neighbor spacing (NNS) distribution of the Dirac eigenvalues.…Terukazu Ichihara, Keitaro Nagata, Kouji Kashiwa·Mar 31, 2016SaveLearn