Investigation of two-particle contributions to nucleon matrix elementsWe investigate contributions of excited states to nucleon matrix elements by studying the two- and three-point functions using nucleon and pion-nucleon interpolating fields. This study is carried out…Constantia Alexandrou, Giannis Koutsou, Yan Li et al.·Dec 25, 2023SaveLearn
Sphaleron rate as an inverse problem: a novel lattice approachWe compute the sphaleron rate on the lattice. We adopt a novel strategy based on the extraction of the spectral density via a modified version of the Backus-Gilbert method from finite-lattice-spacing…Claudio Bonanno, Francesco D'Angelo, Massimo D'Elia et al.·Dec 24, 2023SaveLearn
QCD equation of state in the presence of magnetic fields at low densityPeripheral heavy-ion collisions are expected to exhibit magnetic fields with magnitudes comparable to the QCD scale, as well as non-zero baryon densities. Whereas QCD at finite magnetic fields can be…S. Borsányi, B. B. Brandt, G. Endrődi et al.·Dec 22, 2023SaveLearn
Hybrid static potentials from Laplacian EigenmodesWe present a method for computing hybrid static quark-antiquark potentials in lattice QCD based on Laplace trial states. They are formed by eigenvector components of the covariant lattice Laplace…Roman Höllwieser, Francesco Knechtli, Tomasz Korzec et al.·Dec 22, 2023SaveLearn
Tensor Renormalization Group Methods for Quantum Real-time EvolutionAb-initio calculations of real-time evolution for lattice gauge theory have very interesting potential applications but present challenging computational aspects. We show that tensor renormalization…Michael Hite, Yannick Meurice·Dec 22, 2023SaveLearn
The determination of r0 and r1 in Nf=2+1 QCDWe determine the scales r0, r1, the ratio r0/r1 for Nf = 2 + 1 flavor QCD ensembles generated by CLS. These scales are determined from an improved definition of the static force, which…Tom Matty Bo Asmussen, Roman Höllwieser, Francesco Knechtli et al.·Dec 22, 2023SaveLearn
Electromagnetic effects on topological observables in QCDIn this proceedings article we present a selected set of our lattice results regarding the effect that background electromagnetic fields have on the topology of QCD. In particular, we report on the…Bastian B. Brandt, Gergely Endrődi, José Javier Hernández Hernández et al.·Dec 22, 2023SaveLearn
Extrapolating semileptonic form factors using Bayesian-inference fits regulated by unitarity and analyticityWe discuss our recently proposed model-independent framework for fitting hadronic form-factor data, which are often only available at discrete kinematical points, using parameterisations based on…J. M. Flynn, A. Jüttner, J. T. Tsang·Dec 22, 2023SaveLearn
Chiral Transition via Strong Coupling ExpansionWe investigate the chiral transition of U(3) lattice gauge theory based on the strong coupling expansion. A generalized vertex model with vertices and weights derived from the tensor network…Jangho Kim, Pratitee Pattanaik, Wolfgang Unger·Dec 22, 2023SaveLearn
Numerical evidence for fractional topological objects in SU(3) gauge theoryThe continued development of models that propose the existence of fractional topological objects in the Yang-Mills vacuum has called for a quantitative method to study the topological structure of…Jackson A. Mickley, Waseem Kamleh, Derek B. Leinweber·Dec 22, 2023SaveLearn
New mixed inhomogeneous phase in vortical gluon plasma: first-principle results from rotating SU(3) lattice gauge theoryUsing first-principle numerical simulations, we find a new spatially inhomogeneous phase in rigidly rotating Nc = 3 gluon plasma. This mixed phase simultaneously possesses both confining and…Victor V. Braguta, Maxim N. Chernodub, Artem A. Roenko·Dec 21, 2023SaveLearn
Approaching the conformal WZW behavior in the infrared limit of two-dimensional massless QCD: a lattice studyTwo-dimensional QCD with Nc colors and Nf flavors of massless fermions in the fundamental representation is expected to exhibit conformal behavior in the infrared governed by a u(Nf) WZW…Nikhil Karthik, Rajamani Narayanan, Sruthi A. Narayanan·Dec 21, 2023SaveLearn
Muon g-2: Lattice calculations of the hadronic vacuum polarizationThe experimental uncertainty on the anomalous magnetic moment of the muon has been significantly reduced with the recent results of the Fermilab g-2 experiment, and a further reduction is expected…Simon Kuberski·Dec 21, 2023SaveLearn
Doubly charmed tetraquark: isospin channels and diquark-antidiquark interpolatorsWe perform a lattice simulation to investigate the doubly charmed tetraquark T+cc observed by the LHCb collaboration, slightly below the D*+D0 threshold, with flavor content…Emmanuel Ortiz-Pacheco, Sara Collins, Luka Leskovec et al.·Dec 20, 2023SaveLearn
Testing Eigenstate Thermalization Hypothesis for Non-Abelian Gauge TheoriesWe report on progress in full quantum understanding of thermalization in non-Abelian gauge theories. Specifically, we test the eigenstate thermalization hypothesis for (2+1)-dimensional SU(2) lattice…Xiaojun Yao, Lukas Ebner, Berndt Müller et al.·Dec 20, 2023SaveLearn
LDIC Survey 2023: Feeling Welcome in the CommunityWe review the level of welcomeness that members of the lattice field theory community feel based on the results of a survey performed in May and June 2023. While respondents reported generally high…Christopher Aubin, Bipasha Chakraborty, Will Detmold et al.·Dec 20, 2023SaveLearn
Proton and neutron electromagnetic radii and magnetic moments from lattice QCDWe present results for the electromagnetic form factors of the proton and neutron computed on the (2 + 1)-flavor Coordinated Lattice Simulations (CLS) ensembles including both quark-connected and…Miguel Salg, Dalibor Djukanovic, Georg von Hippel et al.·Dec 20, 2023SaveLearn
Proton and neutron electromagnetic radii and magnetic moments from Nf = 2 + 1 lattice QCDWe present results for the electromagnetic form factors of the proton and neutron computed on the (2 + 1)-flavor Coordinated Lattice Simulations (CLS) ensembles including both quark-connected and…Miguel Salg, Dalibor Djukanovic, Georg von Hippel et al.·Dec 20, 2023SaveLearn
Charm degrees of freedom in hot matter from lattice QCDWe study the nature of charm degrees of freedom in hot strong interaction matter by performing lattice QCD calculations of the second and fourth-order cumulants of charm fluctuations, and their…A. Bazavov, D. Bollweg, O. Kaczmarek et al.·Dec 20, 2023SaveLearn
First-Order Phase Transition of the Schwinger Model with a Quantum ComputerWe explore the first-order phase transition in the lattice Schwinger model in the presence of a topological θ-term by means of the variational quantum eigensolver (VQE). Using two different…Takis Angelides, Pranay Naredi, Arianna Crippa et al.·Dec 20, 2023SaveLearn
Mitigating a discrete sign problem with extreme learning machinesAn extreme learning machine is a neural network in which only the weights in the last layer are changed during training; for such networks training can be performed efficiently and deterministically.…Scott Lawrence, Yukari Yamauchi·Dec 19, 2023SaveLearn
Towards the super Yang-Mills spectrum at large NcWe examine one-flavour SU(Nc) gauge theories, where Nc denotes the number of colors, with one fermion in the antisymmetric representation as a candidate to approximate N=1 super…Michele Della Morte, Benjamin Jäger, Sofie Martins et al.·Dec 19, 2023SaveLearn
Heavy Quark Momentum Broadening in a Non-Abelian Plasma away from Thermal EquilibriumWe perform classical-statistical real-time lattice simulations to compute real-time spectral functions and momentum broadening of quarks in the presence of strongly populated non-Abelian gauge…Harshit Pandey, Soeren Schlichting, Sayantan Sharma·Dec 19, 2023SaveLearn
The θ-dependence of the SU(N) critical temperature at large NWe investigate, by means of numerical lattice simulations, the θ-dependence of the critical deconfinement temperature of SU(N) gauge theories at large N: $Tc(θ) =…Claudio Bonanno, Massimo D'Elia, Lorenzo Verzichelli·Dec 19, 2023SaveLearn
Finite-size behavior of higher-order cumulant ratios near criticality in two-dimensional Potts modelsTheoretical considerations predict a specific hierarchy among ratios of net-baryon number cumulants (n, where n is the order of cumulant) in the vicinity of the transition from the…Rajiv V. Gavai, Bedangadas Mohanty, Jaydev Singh Rao et al.·Dec 19, 2023SaveLearn