5D Maximally Supersymmetric Yang-Mills on the LatticeWe provide details of the lattice construction of five-dimensional maximally supersymmetric Yang-Mills theory. The lattice theory is supersymmetric, gauge invariant and free from spectrum doublers.…Anosh Joseph·Oct 11, 2016SaveLearn
Interplay between Deconfinement and Chiral PropertiesWe study interplay between confinement/deconfinement and chiral properties. We derive some analytical relations of the Dirac modes with the confinement quantities, such as the Polyakov loop, its…Hideo Suganuma, Takahiro M. Doi, Krzysztof Redlich et al.·Oct 10, 2016SaveLearn
A simple method to optimize HMC performanceWe present a practical strategy to optimize a set of Hybrid Monte Carlo parameters in simulations of QCD and QCD-like theories. We specialize to the case of mass-preconditioning, with multiple…Andrea Bussone, Michele Della Morte, Vincent Drach et al.·Oct 10, 2016SaveLearn
Adaptive Aggregation-based Domain Decomposition Multigrid for Twisted Mass FermionsThe Adaptive Aggregation-based Domain Decomposition Multigrid method (arXiv:1303.1377) is extended for two degenerate flavors of twisted mass fermions. By fine-tuning the parameters we achieve a…Constantia Alexandrou, Simone Bacchio, Jacob Finkenrath et al.·Oct 7, 2016SaveLearn
A Chiral Solution to the Ginsparg-Wilson EquationWe present a chiral solution of the Ginsparg-Wilson equation. This work is motivated by our recent proposal for nonperturbatively regulating chiral gauge theories, where five-dimensional domain wall…Dorota M. Grabowska, David B. Kaplan·Oct 7, 2016SaveLearn
Matrix elements from moments of correlation functionsMomentum-space derivatives of matrix elements can be related to their coordinate-space moments through the Fourier transform. We derive these expressions as a function of momentum transfer Q2 for…Chris Bouchard, Chia Cheng Chang, Kostas Orginos et al.·Oct 7, 2016SaveLearn
Lattice QCD simulation of the Berry curvatureThe Berry curvature is a fundamental concept describing topological order of quantum systems. While it can be analytically tractable in non-interacting systems, numerical simulations are necessary in…Arata Yamamoto·Oct 7, 2016SaveLearn
New polynomially exact integration rules on U(N) and SU(N)In lattice Quantum Field Theory, we are often presented with integrals over polynomials of coefficients of matrices in U(N) or SU(N) with respect to the Haar measure. In some physical situations,…Andreas Ammon, Tobias Hartung, Karl Jansen et al.·Oct 6, 2016SaveLearn
The spectrum and mass anomalous dimension of SU(2) adjoint QCD with two Dirac flavoursIn this work we present the results of our investigation of 2 gauge theory with two Dirac fermions in the adjoint representation (aQCD2), which belongs to the class of strongly interacting gauge…Georg Bergner, Pietro Giudice, Istvan Montvay et al.·Oct 5, 2016SaveLearn
Worm Algorithm for CP(N-1) ModelThe CP(N-1) model in 2D is an interesting toy model for 4D QCD as it possesses confinement, asymptotic freedom and a non-trivial vacuum structure. Due to the lower dimensionality and the absence of…Tobias Rindlisbacher, Philippe de Forcrand·Oct 5, 2016SaveLearn
Pion-nucleon scattering in the Roper channel from lattice QCDWe present a lattice QCD study of Nπ scattering in the positive-parity nucleon channel, where the puzzling Roper resonance N*(1440) resides in experiment. The study is based on the PACS-CS…C. B. Lang, L. Leskovec, M. Padmanath et al.·Oct 5, 2016SaveLearn
Time evolution of linearized gauge field fluctuations on a real-time latticeClassical real-time lattice simulations play an important role in understanding non-equilibrium phenomena in gauge theories and are used in particular to model the prethermal evolution of heavy-ion…Aleksi Kurkela, Tuomas Lappi, Jarkko Peuron·Oct 5, 2016SaveLearn
Excited and exotic charmonium, Ds and D meson spectra for two light quark masses from lattice QCDWe present highly-excited charmonium, Ds and D meson spectra from dynamical lattice QCD calculations with light quarks corresponding to Mπ 240 MeV and compare these to previous results…Gavin K. C. Cheung, Cian O'Hara, Graham Moir et al.·Oct 4, 2016SaveLearn
Dynamical role of Polyakov loops in the QCD thermodynamicsPolyakov loops La(T), a=3,8,... are shown to give the most important nonperturbative contribution to the thermodynamic potentials. Derived from the gluonic field correlators they enter as factors…N. O. Agasian, M. S. Lukashov, Yu. A. Simonov·Oct 4, 2016SaveLearn
Operators for scattering of particles with spinOperators for simulating the scattering of two particles with spin are constructed. Three methods are shown to give the consistent lattice operators for PN, PV, VN and NN scattering, where P, V and N…S. Prelovsek, U. Skerbis, C. B. Lang·Oct 4, 2016SaveLearn
Leptonic decay-constant ratio fK/fπ from clover-improved Nf=2+1 QCDThe leptonic decay-constant ratio fK/fπ is calculated from lattice-QCD simulations using Nf=2+1 dynamical fermion flavors in the clover-improved formulation and 2-HEX smearing. The simulations…Enno E. Scholz, Stephan Durr·Oct 4, 2016SaveLearn
The Slab Method to Measure the Topological SusceptibilityIn simulations of a model with topological sectors, algorithms which proceed in small update steps tend to get stuck in one sector, especially on fine lattices. This distorts the numerical results;…Wolfgang Bietenholz, Krzysztof Cichy, Philippe de Forcrand et al.·Oct 3, 2016SaveLearn
Lefschetz-thimble approach to the Silver Blaze problem of one-site fermion modelThe sign problem of finite-density QCD at the zero temperature becomes very severe if the quark chemical potential exceeds half of the pion mass. In order to understand its property, we consider the…Yuya Tanizaki, Yoshimasa Hidaka, Tomoya Hayata·Oct 3, 2016SaveLearn
SU(2NF) symmetry of QCD at high temperature and its implicationsIf above a critical temperature not only the SU(NF)L × SU(NF)R chiral symmetry of QCD but also the U(1)A symmetry is restored, then the actual symmetry of the QCD correlation functions and…L. Ya. Glozman·Oct 2, 2016SaveLearn
Probing the nature of phases across the phase transition at finite isospin chemical potentialWe compare the low eigenvalue spectra of the Overlap Dirac operator on two sets of configurations at μI/μIc = 0.5 and 1.5 generated with dynamical staggered fermions at these isospin chemical…Gunnar S. Bali, G. Endrodi, Rajiv V. Gavai et al.·Oct 2, 2016SaveLearn
Progress on the three-particle quantization conditionWe report progress on extending the relativistic model-independent quantization condition for three particles, derived previously by two of us, to a broader class of theories, as well as progress on…Raul A. Briceno, Maxwell T. Hansen, Stephen R. Sharpe·Sep 30, 2016SaveLearn
Non-perturbative determination of improvement coefficients using coordinate space correlators in Nf=2+1 lattice QCDWe determine quark mass dependent order a improvement terms of the form bJ am for non-singlet scalar, pseudoscalar, vector and axialvector currents, using correlators in coordinate space. We use…Piotr Korcyl, Gunnar S. Bali·Sep 29, 2016SaveLearn
Non-renormalization theorem in a lattice supersymmetric theory and the cyclic Leibniz ruleN=4 supersymmetric quantum mechanical model is formulated on the lattice. Two supercharges, among four, are exactly conserved with the help of the cyclic Leibniz rule without spoiling the locality.…Mitsuhiro Kato, Makoto Sakamoto, Hiroto So·Sep 28, 2016SaveLearn
Metropolis updates for Diagrammatic Monte-Carlo algorithms from Schwinger-Dyson equationsWe describe a general recipe for constructing Metropolis updates for Diagrammatic Monte-Carlo (DiagMC) algorithms, based on the Schwinger-Dyson equations in quantum field theory. This approach…P. V. Buividovich·Sep 28, 2016SaveLearn
Novel phases in strongly coupled four-fermion theoriesWe study a lattice model comprising four massless reduced staggered fermions in four dimensions coupled through an SU(4)-invariant four-fermion interaction. We present both theoretical arguments…Simon Catterall, David Schaich·Sep 27, 2016SaveLearn