Aspects of lattice N=4 supersymmetric Yang--MillsNon-perturbative investigations of N = 4 supersymmetric Yang--Mills theory formulated on a space-time lattice have advanced rapidly in recent years. Large-scale numerical calculations are…David Schaich·Dec 3, 2015SaveLearn
Approaching conformality with the Tensor Renormalization Group methodWe discuss the Tensor Renormalization Group (TRG) method for the O(2) model with a chemical potential in 1+1 dimensions with emphasis on near gapless/conformal situations. We emphasize the role…Yannick Meurice, Li-Ping Yang, Judah Unmuth-Yockey et al.·Dec 3, 2015SaveLearn
Dual representation for massless fermions with chemical potential and U(1) gauge fieldsComplex action problems coming from either a chemical potential or a topological term have been solved for several models in recent years by mapping them to so-called dual degrees of freedom. In…Christof Gattringer, Thomas Kloiber, Vasily Sazonov·Dec 3, 2015SaveLearn
SU(3) gauge theory with four degenerate fundamental fermions on the latticeAs a part of the project studying large Nf QCD, the LatKMI Collaboration has been investigating the SU(3) gauge theory with four fundamental fermions (four-flavor QCD). The main purpose of…Yasumichi Aoki, Tatsumi Aoyama, Ed Bennett et al.·Dec 3, 2015SaveLearn
Topology and glueballs in SU(7) Yang-Mills with open boundary conditionsIt is well known that the topology of gauge configurations generated in a Markov Monte-Carlo chain freezes as the continuum limit is approached. The corresponding autocorrelation time increases…Alessandro Amato, Gunnar Bali, Biagio Lucini·Dec 2, 2015SaveLearn
Neutron and proton electric dipole moments from Nf=2+1 domain-wall fermion lattice QCDWe present a lattice calculation of the neutron and proton electric dipole moments (EDM's) with Nf=2+1 flavors of domain-wall fermions. The neutron and proton EDM form factors are extracted…Eigo Shintani, Thomas Blum, Taku Izubuchi et al.·Dec 2, 2015SaveLearn
Hamiltonian effective field theory study of the N*(1535) resonance in lattice QCDDrawing on experimental data for baryon resonances, Hamiltonian effective field theory (HEFT) is used to predict the positions of the finite-volume energy levels to be observed in lattice QCD…Zhan-Wei Liu, Waseem Kamleh, Derek B. Leinweber et al.·Dec 1, 2015SaveLearn
Chiral symmetry breaking, instantons, and monopolesThe purpose of this study is to show that monopoles induce the chiral symmetry breaking. In order to indicate the evidence, we add one pair of monopoles with magnetic charges to the quenched SU(3)…Adriano Di Giacomo, Masayasu Hasegawa·Dec 1, 2015SaveLearn
A derivative-based approach for the leading order hadronic contribution to gμ-2We describe a lattice approach to calculating the leading-order hadronic contribution to the anomalous magnetic moment of the muon. We employ lattice momentum derivatives, in both the spatial and…Eric B. Gregory, Craig McNeile·Dec 1, 2015SaveLearn
The gradient flow in simple field theoriesThe gradient flow is a valuable tool for the lattice community, with applications from scale-setting to implementing chiral fermions. Here I focus on the gradient flow as a means to suppress…Christopher Monahan·Dec 1, 2015SaveLearn
The Rho Resonance from Nf=2+1+1 Twisted Mass Lattice QCDWe present first results on the ρ resonance parameters obtained with Nf=2+1+1 Wilson twisted mass fermions at maximal twist. Using ensembles of the ETM collaboration, we provide results for two…C. Helmes, C. Jost, B. Knippschild et al.·Dec 1, 2015SaveLearn
Magnetic polarizability of pionWe explore the energy dependence of π mesons off the background abelian magnetic field on the base of quenched SU(3) lattice gauge theory and calculate the magnetic dipole polarizability of charged…E. V. Luschevskaya, O. E. Solovjeva, O. V. Teryaev·Nov 30, 2015SaveLearn
Light nuclei and nucleon form factors in Nf=2+1 lattice QCDWe present our result of binding energy of light nuclei with the nuclear mass number less than or equal to four at the pion mass mπ= 0.3 GeV. The simulations are performed in Nf=2+1 QCD with…Takeshi Yamazaki, for PACS Collaboration·Nov 30, 2015SaveLearn
Lifshitz-type SU(N) lattice gauge theory in five dimensionsWe present a lattice formulation of non-Abelian Lifshitz-type gauge theories. Due to anisotropic scaling of space and time, the theory is asymptotically free even in five dimensions. We show results…Takuya Kanazawa, Arata Yamamoto·Nov 30, 2015SaveLearn
Non-perturbative renormalization of the static quark theory in a large volumeWe report on progress to renormalize non-pertubatively the static heavy quark theory on the lattice. In particular, we present first results for position-space renormalization scheme for heavy-light…Piotr Korcyl, Christoph Lehner, Tomomi Ishikawa·Nov 30, 2015SaveLearn
Classifying the Phases of Gauge Theories by Spectral Density of Probing Chiral QuarksWe describe our recent proposal that distinct phases of gauge theories with fundamental quarks translate into specific types of low-energy behavior in Dirac spectral density. The resulting scenario…Andrei Alexandru, Ivan Horváth·Nov 30, 2015SaveLearn
Domain Wall Charm Physics with Physical Pion Masses: Decay constants, bag and ξ parametersWe provide an overview of RBC/UKQCD's charm project on 2+1 flavour physical pion mass ensembles using Möbius Domain Wall Fermions for the light as well as for the charm quark. We discuss the…Peter Boyle, Luigi Del Debbio, Ava Khamseh et al.·Nov 30, 2015SaveLearn
Investigating some technical improvements to glueball calculationsWe briefly discuss some issues concerning including the pseudoscalar glueball interpolating operators into the variational basis for computing the masses of the eta and etaprime mesons. As a start we…Biagio Lucini, Craig McNeile, Antonio Rago·Nov 30, 2015SaveLearn
2+1 flavor QCD simulation on a 964 latticeWe generate 2+1 flavor QCD configurations near the physical point on a 964 lattice employing the 6-APE stout smeared Wilson clover action with a nonperturbative c SW and the Iwasaki…K. -I. Ishikawa, N. Ishizuka, Y. Kuramashi et al.·Nov 30, 2015SaveLearn
Analysis of short-distance current correlators using OPEWe investigate the correlators of flavor non-singlet bilinear operators calculated on the lattice at short distances. In the continuum theory, non-perturbative effects are encoded in the form of the…M. Tomii, G. Cossu, B. Fahy et al.·Nov 30, 2015SaveLearn
Charmonium current-current correlators with Mobius domain-wall fermionWe calculate the charmonium correlators on the lattice with nf = 2+ 1 Moebius domain wall fermion, and extract the charm quark mass and the strong coupling constant. Time moments are defined by…Katsumasa Nakayama, Brendan Fahy, Shoji Hashimoto·Nov 30, 2015SaveLearn
N* Spectroscopy from Lattice QCD: The Roper ExplainedThis brief review focuses on the low-lying even- and odd-parity excitations of the nucleon obtained in recent lattice QCD calculations. Commencing with a survey of the 2014-15 literature we'll…Derek Leinweber, Waseem Kamleh, Adrian Kiratidis et al.·Nov 30, 2015SaveLearn
πN and strangeness sigma terms at the physical point with chiral fermionsLattice QCD calculations with chiral fermions of the πN sigma term σπN and strangeness sigma term σsN including chiral interpolation with continuum and volume corrections are provided in…Yi-Bo Yang, Andrei Alexandru, Terrence Draper et al.·Nov 29, 2015SaveLearn
Beyond complex Langevin equations I: two simple examplesBy introducing a second complex variable, the integral relation between a complex density and the corresponding positive distribution is derived. Together with the positivity and normalizability…Jacek Wosiek·Nov 29, 2015SaveLearn
Exotic Quantum Critical Points with Staggered FermionsWe study two flavors of massless staggered fermions interacting via an on-site four-fermion inter- action and argue that the model contains an exotic quantum critical point separating the perturba-…Venkitesh Ayyar·Nov 29, 2015SaveLearn