Nucleon-charmonium interactions from lattice QCDWe present a realistic lattice QCD study on low-energy N-J/ and N-ηc interactions based on (2+1) flavor configurations with nearly physical pion mass mπ=146 MeV. The…Yan Lyu, Takumi Doi, Tetsuo Hatsuda et al.·Oct 30, 2024SaveLearn
On learning higher-order cumulants in diffusion modelsTo analyse how diffusion models learn correlations beyond Gaussian ones, we study the behaviour of higher-order cumulants, or connected n-point functions, under both the forward and backward process.…Gert Aarts, Diaa E. Habibi, Lingxiao Wang et al.·Oct 28, 2024SaveLearn
Hadron interactions and cosmic strings from lattice simulationsThis doctoral thesis focuses on the application of lattice techniques to study two separate topics: hadron interactions within quantum chromodynamics (QCD), and the emission of particles and…Jorge Baeza-Ballesteros·Oct 28, 2024SaveLearn
The long-distance window of the hadronic vacuum polarization for the muon g-2We provide the first ab-initio calculation of the Euclidean long-distance window of the isospin symmetric light-quark connected contribution to the hadronic vacuum polarization for the muon g-2 and…T. Blum, P. A. Boyle, M. Bruno et al.·Oct 27, 2024SaveLearn
Diffusion models for lattice gauge field simulationsWe develop diffusion models for lattice gauge theories which build on the concept of stochastic quantization. This framework is applied to U(1) gauge theory in 1+1 dimensions. We show that a…Qianteng Zhu, Gert Aarts, Wei Wang et al.·Oct 25, 2024SaveLearn
Towards the β function of SU(2) with adjoint matter using Pauli-Villars fieldsThe family of SU(2) theories with matter transforming in the adjoint representation has attracted interest from many angles. The two-flavour theory, known as Minimal Walking Technicolor, has a body…Ed Bennett, Andreas Athenodorou, Georg Bergner et al.·Oct 25, 2024SaveLearn
Lattice study of RG fixed point based on gradient flow in 3D O(N) sigma modelWe present the lattice simulation of the renormalization group flow in the 3-dimensional O(N) linear sigma model. This model possesses a nontrivial infrared fixed point, called Wilson--Fisher…Okuto Morikawa, Mizuki Tanaka, Masakiyo Kitazawa et al.·Oct 25, 2024SaveLearn
Locating Critical Points Using Ratios of Lee-Yang ZerosWe propose a method to numerically determine the location of a critical point in general systems using the finite-size scaling of Lee-Yang zeros. This method makes use of the fact that the ratios of…Tatsuya Wada, Masakiyo Kitazawa, Kazuyuki Kanaya·Oct 25, 2024SaveLearn
Internal structure of gauge-invariant Projected Entangled Pair StatesProjected entangled pair states (PEPS) are very useful in the description of strongly correlated systems, partly because they allow encoding symmetries, either global or local (gauge), naturally. In…David Blanik, José Garre-Rubio, András Molnár et al.·Oct 24, 2024SaveLearn
Calculation of heavy meson light-cone distribution amplitudes from lattice QCDWe develop an approach for calculating heavy quark effective theory (HQET) light-cone distribution amplitudes (LCDAs) by employing a sequential effective theory methodology. The theoretical…Xue-Ying Han, Jun Hua, Xiangdong Ji et al.·Oct 24, 2024SaveLearn
Finite-volume effects in the δ-regimeWe derive a systematic perturbative expansion for the finite-volume energy spectrum of the non-linear O(N) σ-model in the δ-regime. The violation of the power-counting rules that…Ulf-G. Meißner, Fabian Müller, Akaki Rusetsky·Oct 23, 2024SaveLearn
QCD Lambda Parameter from Gradient FlowStarting from the running coupling in the gradient flow scheme, the QCD Lambda parameter \,\! MS\!\; is determined analytically with respect to the reference scale w0 in…Gerrit Schierholz·Oct 23, 2024SaveLearn
The hadronic light-by-light contribution to the muon g-2 using staggered fermions at the physical pointHadronic contributions dominate the uncertainty of the Standard Model prediction for the anomalous magnetic moment of the muon. In this work, we present results on the hadronic light-by-light…Christian Zimmermann, Antoine Gérardin·Oct 22, 2024SaveLearn
A high-precision continuum limit study of the HVP short-distance windowThe separation of the hadronic vacuum polarization (HVP) contribution to the muon anomalous magnetic moment into Euclidean windows allows for a tailored approach to address the different dominant…Sebastian Spiegel, Christoph Lehner·Oct 22, 2024SaveLearn
Perturbative gradient flow coupling of the twisted Eguchi-Kawai model with the numerical stochastic perturbation theoryThe gradient flow scheme has emerged as a prominent nonperturbative renormalization scheme on the lattice, where flow time is introduced to define the renormalization scale. In this study we…Ken-Ichi Ishikawa, Masanori Okawa, Hironori Takei·Oct 21, 2024SaveLearn
Quark mass effects in octet baryon magnetic polarisabilities via lattice QCDThe quark mass dependence of octet baryon magnetic polarisabilities is examined at the level of individual quark-sector contributions in the uniform background-field approach of lattice QCD. The aim…Thomas Kabelitz, Waseem Kamleh, Derek Leinweber·Oct 21, 2024SaveLearn
Quantum computation of SU(2) lattice gauge theory with continuous variablesWe present a quantum computational framework for SU(2) lattice gauge theory, leveraging continuous variables instead of discrete qubits to represent the infinite-dimensional Hilbert space of the…Victor Ale, Nora M. Bauer, Raghav G. Jha et al.·Oct 18, 2024SaveLearn
Implementation of the three-neutron quantization conditionWe present an implementation of the three-neutron quantization condition (QC) derived in previous work. We construct the matrices appearing in the QC and determine solutions numerically. The…Wilder Schaaf, Stephen R. Sharpe·Oct 17, 2024SaveLearn
Kernels and integration cycles in complex Langevin simulationsThe method of complex Langevin simulations is a tool that can be used to tackle the complex-action problem encountered, for instance, in finite-density lattice quantum chromodynamics or real-time…Michael Mandl, Michael W. Hansen, Erhard Seiler et al.·Oct 17, 2024SaveLearn
Non-Perturbative Trivializing Flows for Lattice Gauge TheoriesContinuous normalizing flows are known to be highly expressive and flexible, which allows for easier incorporation of large symmetries and makes them a powerful computational tool for lattice field…Mathis Gerdes, Pim de Haan, Roberto Bondesan et al.·Oct 17, 2024SaveLearn
Computing real-time quantum path integrals on Sewed, almost-Lefschetz thimblesWe present a method to compute real-time path integrals numerically, by Monte-Carlo sampling on near-Lefschetz thimbles. We present a collection of tools based on the Lefschetz thimble methods, which…Zong-Gang Mou, Paul M. Saffin, Anders Tranberg·Oct 16, 2024SaveLearn
Non-perturbative thermal QCD at very high temperaturesWe present a recently introduced strategy to study non-perturbatively thermal QCD up to temperatures of the order of the electro-weak scale, combining step scaling techniques and shifted boundary…Leonardo Giusti, Matteo Bresciani, Mattia Dalla Brida et al.·Oct 16, 2024SaveLearn
Exploring lattice supersymmetry with variational quantum deflationLattice studies of spontaneous supersymmetry breaking suffer from a sign problem that in principle can be evaded through novel methods enabled by quantum computing. Focusing on lower-dimensional…David Schaich, Christopher Culver·Oct 15, 2024SaveLearn
Truncation-Free Quantum Simulation of Pure-Gauge Compact QED Using Josephson ArraysQuantum simulation is one of the methods that have been proposed and used in practice to bypass computational challenges in the investigation of lattice gauge theories. While most of the proposals…Guy Pardo, Julian Bender, Nadav Katz et al.·Oct 15, 2024SaveLearn
Progress on pseudoscalar flavour-singlets in Sp(4) with mixed fermion representationsWe measure the masses of the pseudoscalar flavour-singlet meson states in the Sp(4) gauge theory coupled to two Dirac fermions transforming in the fundamental representation and three Dirac…Fabian Zierler, Ed Bennett, Niccolò Forzano et al.·Oct 15, 2024SaveLearn