Topological susceptibility of QCD with dynamical Möbius domain wall fermionsWe compute the topological susceptibility χt of lattice QCD with 2+1 dynamical quark flavors described by the Möbius domain wall fermion. Violation of chiral symmetry as measured by the residual…S. Aoki, G. Cossu, H. Fukaya et al.·May 31, 2017SaveLearn
The SU(3) Sextet Model with Wilson FermionsWe investigate the spectrum and IR properties of the SU(3) "sextet" model with two Dirac fermions in the two-index symmetric representation via lattice simulations. This model is a prime…Martin Hansen, Vincent Drach, Claudio Pica·May 31, 2017SaveLearn
Entanglement Entropy in Pure Z2 Gauge LatticesWe show that the Hilbert space of physical states on a pure Z2 gauge lattice in 1 + 1 and 2 + 1 dimensions is geometrically separable if the fundamental physical degrees of freedom are taken…Mihael Hategan·May 30, 2017SaveLearn
Lattice QCD results on soft and hard probes of strongly interacting matterWe present recent results from lattice QCD relevant for the study of strongly interacting matter as it is produced in heavy ion collision experiments. The equation of state at non-vanishing density…Olaf Kaczmarek·May 30, 2017SaveLearn
Second moment of the pion distribution amplitude with the momentum smearing techniqueUsing the second moment of the pion distribution amplitude as an example, we investigate whether lattice calculations of matrix elements of local operators involving covariant derivatives may benefit…RQCD Collaboration, G. S. Bali, V. M. Braun et al.·May 29, 2017SaveLearn
Landau levels in QCDWe present first evidence for the Landau level structure of Dirac eigenmodes in full QCD for nonzero background magnetic fields, based on first principles lattice simulations using staggered quarks.…F. Bruckmann, G. Endrodi, M. Giordano et al.·May 29, 2017SaveLearn
Lattice implementation of Abelian gauge theories with Chern-Simons number and an axion fieldReal time evolution of classical gauge fields is relevant for a number of applications in particle physics and cosmology, ranging from the early Universe to dynamics of quark-gluon plasma. We present…Daniel G. Figueroa, Mikhail Shaposhnikov·May 26, 2017SaveLearn
Towards meaningful physics from generative modelsIn several physical systems, important properties characterizing the system itself are theoretically related with specific degrees of freedom. Although standard Monte Carlo simulations provide an…Marco Cristoforetti, Giuseppe Jurman, Andrea I. Nardelli et al.·May 26, 2017SaveLearn
Comment on "Are two nucleons bound in lattice QCD for heavy quark masses? - Sanity check with Lüscher's finite volume formula -"In this comment, we address a number of erroneous discussions and conclusions presented in a recent preprint by the HALQCD collaboration, arXiv:1703.07210. In particular, we demonstrate that lattice…Silas R. Beane, Emmanuel Chang, Zohreh Davoudi et al.·May 25, 2017SaveLearn
Higher order tensor renormalization group for relativistic fermion systemsWe apply the higher order tensor renormalization group to two and three dimensional relativistic fermion systems on the lattice. In order to perform a coarse-graining of tensor networks including…Ryo Sakai, Shinji Takeda, Yusuke Yoshimura·May 22, 2017SaveLearn
Matter-antimatter coexistence method for finite density QCD toward a solution of the sign problemToward the lattice QCD calculation at finite density, we propose "matter-antimatter coexistence method", where matter and anti-matter systems are prepared on two parallel R4-sheets…Hideo Suganuma·May 21, 2017SaveLearn
Axial Vector Form Factors of the Nucleon from Lattice QCDWe present results for the form factors of the isovector axial vector current in the nucleon state using large scale simulations of lattice QCD. The calculations were done using eight ensembles of…Rajan Gupta, Yong-Chull Jang, Huey-Wen Lin et al.·May 19, 2017SaveLearn
Variance Reduction and Cluster DecompositionIt is a common problem in lattice QCD calculation of the mass of the hadron with an annihilation channel that the signal falls off in time while the noise remains constant. In addition, the…Keh-Fei Liu, Jian Liang, Yi-Bo Yang·May 17, 2017SaveLearn
Cooling Stochastic Quantization with colored noiseSmoothing of field configurations is highly important for precision calculations of physical quantities on the lattice. We present a cooling method based on Stochastic Quantization with a built-in UV…Jan M. Pawlowski, Ion-Olimpiu Stamatescu, Felix P. G. Ziegler·May 17, 2017SaveLearn
Iso-vector axial form factors of the nucleon in two-flavour lattice QCDWe present a lattice calculation of the nucleon iso-vector axial and induced pseudoscalar form factors on the CLS ensembles using N f=2 dynamical flavours of non-perturbatively…Stefano Capitani, Michele Della Morte, Dalibor Djukanovic et al.·May 17, 2017SaveLearn
Distance between configurations in Markov chain Monte Carlo simulationsFor a given Markov chain Monte Carlo algorithm we introduce a distance between two configurations that quantifies the difficulty of transition from one configuration to the other configuration. We…Masafumi Fukuma, Nobuyuki Matsumoto, Naoya Umeda·May 17, 2017SaveLearn
Alleviating the window problem in large volume renormalization schemesWe propose a strategy for large volume non-perturbative renormalization which alleviates the window problem by reducing cut-off effects. We perform a proof-of-concept study using position space…Piotr Korcyl·May 17, 2017SaveLearn
Sea Quarks Contribution to the Nucleon Magnetic Moment and Charge Radius at the Physical PointWe report a comprehensive analysis of the light and strange disconnected-sea quarks contribution to the nucleon magnetic moment, charge radius, and the electric and magnetic form factors. The lattice…Raza Sabbir Sufian, Yi-Bo Yang, Jian Liang et al.·May 16, 2017SaveLearn
Toward solving the sign problem with path optimization methodWe propose a new approach to circumvent the sign problem in which the integration path is optimized to control the sign problem. We give a trial function specifying the integration path in the…Yuto Mori, Kouji Kashiwa, Akira Ohnishi·May 16, 2017SaveLearn
Dependence of the propagators on the sampling of Gribov copies inside the first Gribov region of Landau gaugeBeyond perturbation theory the number of gauge copies drastically increases due to the Gribov-Singer ambiguity. Any way of treating them defines, in principle, a new, non-perturbative gauge, and the…Axel Maas·May 10, 2017SaveLearn
Spectrum of the open QCD flux tube and its effective string description I: 3d static potential in SU(N=2,3)We perform a high precision measurement of the static qq potential in three-dimensional SU(N) gauge theory with N=2,3 and compare the results to the potential obtained from the effective…Bastian B. Brandt·May 10, 2017SaveLearn
Lefschetz thimbles in fermionic effective models with repulsive vector-fieldWe discuss two problems in complexified auxiliary fields in fermionic effective models, the auxiliary sign problem associated with the repulsive vector-field and the choice of the cut for the scalar…Yuto Mori, Kouji Kashiwa, Akira Ohnishi·May 10, 2017SaveLearn
Nucleon axial form factors using lattice QCD simulations with a physical value of the pion massWe present results on the nucleon axial and induced pseudo-scalar form factors using an ensemble of two degenerate twisted mass clover-improved fermions generated at the physical value of the pion…Constantia Alexandrou, Martha Constantinou, Kyriakos Hadjiyiannakou et al.·May 9, 2017SaveLearn
Diagrammatic Monte-Carlo for weak-coupling expansion of non-Abelian lattice field theories: large-N U(N)xU(N) principal chiral modelWe develop numerical tools for Diagrammatic Monte-Carlo simulations of non-Abelian lattice field theories in the t'Hooft large-N limit based on the weak-coupling expansion. First we note that the…P. V. Buividovich, A. Davody·May 9, 2017SaveLearn
Chiral perturbation theory and nucleon-pion-state contaminations in lattice QCDMulti-particle states with additional pions are expected to be a non-negligible source of excited-state contamination in lattice simulations at the physical point. It is shown that baryon chiral…Oliver Bar·May 8, 2017SaveLearn