Equivariance and generalization in neural networksThe crucial role played by the underlying symmetries of high energy physics and lattice field theories calls for the implementation of such symmetries in the neural network architectures that are…Srinath Bulusu, Matteo Favoni, Andreas Ipp et al.·Dec 23, 2021SaveLearn
Generalization capabilities of neural networks in lattice applicationsIn recent years, the use of machine learning has become increasingly popular in the context of lattice field theories. An essential element of such theories is represented by symmetries, whose…Srinath Bulusu, Matteo Favoni, Andreas Ipp et al.·Dec 23, 2021SaveLearn
The Higgs phase as a spin glass phase in D=5 dimensional SU(2) gauge Higgs theoryAccording to recent work of Greensite and Matsuyama, the Higgs phase of a gauge Higgs theory is distinguished from the confinement and massless phases by the spontaneous breaking of a global center…David Ward·Dec 22, 2021SaveLearn
A note on improved stochastic trace estimation for fermionic string fluctuationsWe report on the use of a stochastic trace estimator algorithm, based on mutually unbiased bases, for evaluating the trace of a matrix differential operator appearing in the context of lattice…Valentina Forini, Bjoern Leder, Nils Wauschkuhn·Dec 22, 2021SaveLearn
Analytic expansions of two- and three-particle excited-state energiesThe last years have seen significant developments in methods relating two- and three-particle finite-volume energies to scattering observables. These relations hold for both weakly and strongly…Dorota M. Grabowska, Maxwell T. Hansen·Dec 22, 2021SaveLearn
Hamiltonian Lattice QCD from Strong Coupling ExpansionWe present generalizations of Hamiltonian Lattice QCD as derived from the continuous time limit of strong coupling lattice QCD: we discuss the flavor dependence and the effect of gauge corrections.…Pratitee Pattanaik, Wolfgang Unger·Dec 22, 2021SaveLearn
Density of states for gravitational wavesWe present ongoing investigations of the first-order confinement transition of a composite dark matter model, to predict the resulting spectrum of gravitational waves. To avoid long autocorrelations…Felix Springer, David Schaich·Dec 22, 2021SaveLearn
Near-Physical Point Lattice Calculation of Isospin-Breaking Corrections to K2/π2In recent years, lattice determinations of non-perturbative quantities such as fK and fπ, which are relevant for Vus and Vud, have reached an impressive precision of…Andrew Zhen Ning Yong, Peter Boyle, Matteo Di Carlo et al.·Dec 22, 2021SaveLearn
2+1 flavor fine lattice simulation at finite temperature with domain-wall fermionsSimulations for the thermodynamics of the 2+1 flavor QCD are performed employing chiral fermions. The use of M\"obius domain-wall fermions with stout-link smearing is more effective on the finer…Sinya Aoki, Yasumichi Aoki, Hidenori Fukaya et al.·Dec 22, 2021SaveLearn
Hadronic vacuum polarization of the muon on 2+1+1-flavor HISQ ensembles: an updateWe give an update on the status of the Fermilab Lattice-HPQCD-MILC calculation of the contribution to the muon's anomolous magnetic moment from the light-quark, connected hadronic vacuum…Shaun Lahert, Carleton DeTar, Aida El-Khadra et al.·Dec 22, 2021SaveLearn
Progress report on computing the disconnected QCD and the QCD plus QED hadronic contributions to the muon's anomalous magnetic momentWe report progress on calculating the contribution to the anomalous magnetic moment of the muon from the disconnected hadronic diagrams with light and strange quarks and the valence QED contribution…Alexei Bazavov, Christine Davies, Carleton DeTar et al.·Dec 21, 2021SaveLearn
Preserving gauge invariance in neural networksIn these proceedings we present lattice gauge equivariant convolutional neural networks (L-CNNs) which are able to process data from lattice gauge theory simulations while exactly preserving gauge…Matteo Favoni, Andreas Ipp, David I. Müller et al.·Dec 21, 2021SaveLearn
The torelon spectrum and the world-sheet axionWe present a major update on the spectrum of the closed flux-tube (torelon) in D=3+1 SU(N) gauge theories. Namely, we calculate the excitation spectrum of a confining flux-tube which winds around…Andreas Athenodorou, Michael Teper·Dec 21, 2021SaveLearn
Inhomogeneous phases in the chirally imbalanced 2+1-dimensional Gross-Neveu model and their absence in the continuum limitWe study the μ-μ45-T phase diagram of the 2+1-dimensional Gross-Neveu model, where μ denotes the ordinary chemical potential, μ45 the chiral chemical potential and T the…Laurin Pannullo, Marc Wagner, Marc Winstel·Dec 21, 2021SaveLearn
Coarse graining in effective theories of lattice QCD in 1+1d and 2+1dIn the strong coupling and heavy quark mass regime, lattice QCD dimensionally reduces to effective theories of Polyakov loops depending on the parameters of the original Wilson action β, …Christoph Konrad, Owe Philipsen·Dec 21, 2021SaveLearn
Non-perturbative renormalisation with interpolating momentum schemesHadronic matrix elements evaluated on the lattice can be converted to a continuum scheme such as using intermediate non-perturbative renormalisation schemes. Discretisation effects on the…N Garron, C Cahill, M Gorbahn et al.·Dec 21, 2021SaveLearn
Searching for the BCS phase at nonzero isospin asymmetryAccording to perturbation theory predictions, QCD matter in the zero-temperature, high-density limits of QCD at nonzero isospin chemical potential is expected to be in a superfluid…Bastian B. Brandt, Francesca Cuteri, Gergely Endrődi·Dec 21, 2021SaveLearn
The QCD chiral phase transition for different numbers of quark flavoursWe present results from a comprehensive study of the location of the chiral critical surface, which separates regions of first-order chiral transitions from analytic crossovers, in the bare parameter…Francesca Cuteri, Owe Philipsen, Alessandro Sciarra·Dec 21, 2021SaveLearn
Nonperturbative running of the quark mass for Nf=3 QCD from the chirally rotated Schr\"odinger FunctionalWe study the Renormalisation Group (RG) running of the quark mass, for Nf=3 QCD with Wilson fermions in a mixed action setup, with standard Schr\"odinger Functional (SF) boundary conditions for…Isabel Campos Plasencia, Mattia Dalla Brida, Giulia Maria de Divitiis et al.·Dec 20, 2021SaveLearn
Form factors for semileptonic Bπ, Bs K and Bs Ds decaysWe report on our determinations of B π, Bs K and Bs Ds semileptonic form factors. In addition we discuss the determination of R-ratios testing…Jonathan Flynn, Ryan Hill, Andreas Juettner et al.·Dec 20, 2021SaveLearn
Backpropagating Hybrid Monte Carlo algorithm for fast Lefschetz thimble calculationsThe Picard-Lefschetz theory has been attracting much attention as a tool to evaluate a multi-variable integral with a complex weight, which appears in various important problems in theoretical…Genki Fujisawa, Jun Nishimura, Katsuta Sakai et al.·Dec 20, 2021SaveLearn
The chiral phase transition from strong to weak couplingThe order of the chiral phase transition of lattice QCD with unimproved staggered fermions is known to depend on the number of quark flavours, their masses and the lattice spacing. Previous studies…Francesca Cuteri, Alfredo D'Ambrosio, Owe Philipsen et al.·Dec 20, 2021SaveLearn
Particle density probability distribution function and center symmetry breaking in finite density lattice gauge theoriesWe study the nature of the phase transition at high temperature and high density in lattice gauge theories by focusing on the probability distribution function, which represents the probability that…Shinji Ejiri·Dec 19, 2021SaveLearn
From tensors to qubitsWe discuss recent progress in Tensor Lattice Field Theory and economical, symmetry preserving, truncations suitable for quantum computations or simulations. We focus on spin and gauge models with…Yannick Meurice, Alexei Bazavov, Patrick Dreher et al.·Dec 18, 2021SaveLearn
K π scattering at physical pion mass using distillationScattering at physical pion mass is still an exploratory field in lattice QCD. This generally involves the extraction of excited states through multi-particle correlators on systems with resonances.…Nelson Pitanga Lachini, Peter Boyle, Felix Erben et al.·Dec 17, 2021SaveLearn