Homotopy data as part of the lattice field: A first studyFields exhibit a variety of topological properties, like different topological charges, when field space in the continuum is composed by more than one topological sector. Lattice treatments usually…Pietro Dall'Olio, José A. Zapata·May 30, 2021SaveLearn
Semileptonic form factors for B D at nonzero recoil from 2 + 1-flavor lattice QCDWe present the first unquenched lattice-QCD calculation of the form factors for the decay B→ D at nonzero recoil. Our analysis includes 15 MILC ensembles with Nf=2+1…A. Bazavov, C. E. DeTar, Daping Du et al.·May 28, 2021SaveLearn
The Continuum and Leading Twist Limits of Parton Distribution Functions in Lattice QCDIn this study, we present continuum limit results for the unpolarized parton distribution function of the nucleon computed in lattice QCD. This study is the first continuum limit using the pseudo-PDF…Joseph Karpie, Kostas Orginos, Anatoly Radyushkin et al.·May 27, 2021SaveLearn
Efficient Modelling of Trivializing Maps for Lattice φ4 Theory Using Normalizing Flows: A First Look at ScalabilityGeneral-purpose Markov Chain Monte Carlo sampling algorithms suffer from a dramatic reduction in efficiency as the system being studied is driven towards a critical point. Recently, a series of…Luigi Del Debbio, Joe Marsh Rossney, Michael Wilson·May 26, 2021SaveLearn
Charm sea effects on charmonium decay constants and heavy meson massesWe estimate the effects on the decay constants of charmonium and on heavy meson masses due to the charm quark in the sea. Our goal is to understand whether for these quantities Nf=2+1 lattice QCD…Salvatore Cali, Kevin Eckert, Jochen Heitger et al.·May 26, 2021SaveLearn
Spectrum of very excited g+ flux tubes in SU(3) gauge theorySpectra with full towers of levels are expected due to the quantization of the string vibrations, however different theoretical models exist for the excitation spectra. First principle computations…P. Bicudo, N. Cardoso, A. Sharifian·May 25, 2021SaveLearn
The pion-nucleon sigma term from lattice QCDWe present an analysis of the pion-nucleon σ-term, σπ N, using six ensembles with 2+1+1-flavor highly improved staggered quark action generated by the MILC collaboration. The most…Rajan Gupta, Sungwoo Park, Martin Hoferichter et al.·May 25, 2021SaveLearn
Three-particle finite-volume formalism for π+π+ K+ and related systemsWe consider three-particle systems consisting of two identical particles and a third that is different, with all being spinless. Examples include π+π+ K+ and K+K+π+. We derive the…Tyler D. Blanton, Stephen R. Sharpe·May 25, 2021SaveLearn
Shearing approach to gauge-invariant TrotterizationUniversal quantum simulations of gauge field theories are exposed to the risk of gauge symmetry violations when it is not known how to compile the desired operations exactly using the available gate…Jesse R. Stryker·May 24, 2021SaveLearn
Bs → Ds* Form Factors for the full q2 range from Lattice QCDWe compute the Standard Model semileptonic vector and axial-vector form factors for Bs Ds* decay across the full q2 range using lattice QCD. We use the Highly Improved Staggered Quark…Judd Harrison, Christine T. H. Davies·May 24, 2021SaveLearn
Naive Lattice Fermion without DoublersWe discuss the naive lattice fermion without the issue of doublers. A local lattice massless fermion action with chiral symmetry and hermiticity cannot avoid the doubling problem from the…Xingyu Guo, Chen-Te Ma, Hui Zhang·May 23, 2021SaveLearn
Clock model interpolation and symmetry breaking in O(2) modelsMotivated by recent attempts to quantum simulate lattice models with continuous Abelian symmetries using discrete approximations, we define an extended-O(2) model by adding a γ (q)…Leon Hostetler, Jin Zhang, Ryo Sakai et al.·May 21, 2021SaveLearn
QCD transition at the physical point, and its scaling window from twisted mass Wilson fermionsWe study the scaling properties of the finite temperature QCD phase transition, for light quark masses ranging from the heavy quark regime to their physical values. The lattice results are obtained…A. Yu. Kotov, M. P. Lombardo, A. Trunin·May 20, 2021SaveLearn
The Planar Thirring Model with K\"ahler-Dirac FermionsK\"ahler's geometric approach in which relativistic fermion fields are treated as differential forms is applied in three spacetime dimensions. It is shown that the resulting continuum theory is…Simon Hands·May 20, 2021SaveLearn
Planar Thirring Model in the U(2N)-symmetric limitI review the Thirring model in 2+1d dimensions, focussing in particular on possible strongly-interacting UV-stable fixed points of the renormalisation group, corresponding to a continuous phase…Simon Hands·May 20, 2021SaveLearn
Diagrammatic Strong Coupling Expansion of U(1) Lattice Model in Fourier BasisThe transfer-matrix of U(1) lattice gauge theory is investigated in the field Fourier space, the basis of which consists of the quantized currents on lattice links. Based on a lattice version of the…Afsaneh Kianfar, Amir H. Fatollahi·May 19, 2021SaveLearn
Tensor renormalization group study of the 3d O(2) modelWe calculate thermodynamic potentials and their derivatives for the three-dimensional O(2) model using tensor-network methods to investigate the well-known second-order phase transition. We also…Jacques Bloch, Raghav G. Jha, Robert Lohmayer et al.·May 17, 2021SaveLearn
Building diquark model from Lattice QCDA novel Lattice QCD (LQCD) method to determine the quark-diquark (q-D) interaction potential together with the diquark mass (mD) is proposed. Similar to the HAL QCD method, q-D potential…Kai Watanabe, Noriyoshi Ishii·May 17, 2021SaveLearn
Constraints for the semileptonic B D(*) form factors from lattice QCD simulations of two-point correlation functionsIn this work we present the first non-perturbative determination of the hadronic susceptibilities that constrain the form factors entering the semileptonic B D(*) transitions…G. Martinelli, S. Simula, L. Vittorio·May 17, 2021SaveLearn
Charged pion electric polarizability from lattice QCDWe present a calculation of the charged pion electric polarizability using the background field method. To extract the mass-shift induced by the electric field for the accelerated charged particle we…Hossein Niyazi, Andrei Alexandru, Frank X. Lee et al.·May 14, 2021SaveLearn
Linking continuum and lattice quark mass functions via an effective chargeThe quark mass function is computed both by solving the quark propagator Dyson-Schwinger equation and from lattice simulations implementing overlap and Domain-Wall fermion actions for valence and sea…Lei Chang, Yu-Bin Liu, Khépani Raya et al.·May 13, 2021SaveLearn
Investigating a (3+1)D Topological θ-Term in the Hamiltonian Formulation of Lattice Gauge Theories for Quantum and Classical SimulationsQuantum technologies offer the prospect to efficiently simulate sign-problem afflicted regimes in lattice field theory, such as the presence of topological terms, chemical potentials, and…Angus Kan, Lena Funcke, Stefan Kühn et al.·May 13, 2021SaveLearn
Dynamics of a lattice 2-group gauge theory modelWe study a simple lattice model with local symmetry, whose construction is based on a crossed module of finite groups. Its dynamical degrees of freedom are associated both to links and faces of a…Arkadiusz Bochniak, Leszek Hadasz, Piotr Korcyl et al.·May 12, 2021SaveLearn
Lattice simulation of (2+1)D phonetic solitons and the Renormalization groupThe outline of lattice simulations of (2+1)D soliton-propagations in the background of Weyl spinors is presented. Clifford algebra is applied on Luescher's domain decomposition method. The Clifford…Sadataka Furui·May 11, 2021SaveLearn
Entanglement generation in (1+1)D QED scattering processesWe study real-time meson-meson scattering processes in (1+1)-dimensional QED by means of Tensor Networks. We prepare initial meson wave packets with given momentum and position introducing an…Marco Rigobello, Simone Notarnicola, Giuseppe Magnifico et al.·May 7, 2021SaveLearn