439 papers
Hep-Lat, short for High Energy Physics – Lattice, explores the fundamental forces of nature by simulating particle interactions on a digital grid. Instead of relying solely on abstract equations, researchers in this field use powerful computers to model how quarks and gluons bind together, offering deep insights into the structure of matter that are often impossible to derive analytically.
Gist.Science ensures these complex discoveries from arXiv remain accessible to everyone. We process every new preprint in this category as it is posted, providing both plain-language explanations for the curious and detailed technical summaries for experts. This dual approach bridges the gap between cutting-edge simulation work and broader scientific understanding.
Below are the latest papers in High Energy Physics – Lattice, curated directly from arXiv and ready for you to explore.
This paper introduces the Stochastic Path Sampler (SPS), a novel, data-free neural sampler based on nonequilibrium thermodynamics that generates independent proposals for lattice field theory by minimizing path-space variational free energy, thereby significantly reducing critical slowing down compared to traditional Markov chain Monte Carlo methods.
This paper derives a universal expression for the leading finite-volume effects on smeared vector-vector spectral densities using two distinct approaches, demonstrating that these effects are exponentially suppressed and governed by the pion form factor, thereby providing a framework to reliably estimate and control volume extrapolations in lattice QCD calculations.
Using a 4HEX action to achieve the continuum limit, this study presents the first lattice QCD calculation of fourth-order electric charge fluctuations, revealing a persistent tension with the hadron resonance gas model that is only partially mitigated by including light meson interactions and suggesting a future LHC measurement of the ratio to resolve the discrepancy.
This paper presents the first ab initio lattice measurements of vector resonance properties in two-flavored $Sp(4)$ gauge theory by applying generalized Lüscher's method to PNGB scattering, providing crucial data for composite Higgs models and dark matter searches while updating the theory's meson spectroscopy.
This paper investigates 12-flavor $SU(3)$ lattice QCD with staggered fermions using the Ferrenberg-Swendsen method to analyze partition function zeros, providing strong evidence for a first-order phase transition at a quark mass of 0.02 and suggesting a critical mass of approximately 0.05 where the transition becomes second-order, potentially belonging to the 4D Ising universality class.
This paper investigates the analytic structure of the QCD phase diagram by treating temperature as a complex variable, combining universal critical scaling, effective models, and lattice-QCD data to locate the nearest Yang-Lee edge singularities and establish a consistency test for critical-point searches via the relationship between complex-temperature and complex-chemical-potential trajectories.
This paper introduces three families of globally smooth, analytically invertible scalar bijections and a novel radial flow architecture that together overcome the expressivity and stability trade-offs of existing normalizing flows, achieving superior performance with significantly fewer parameters on both standard benchmarks and complex physics problems like lattice field theory.
Using the Grassmann corner transfer matrix renormalization group, this study maps the phase diagram of the single-flavor Gross--Neveu--Wilson model, identifying distinct universality classes for phase boundaries via entanglement entropy scaling and demonstrating that the Aoki phase does not persist in the strong-coupling regime.
This paper presents efficient methods for preparing approximate ground states of SU(3) lattice gauge theory on quantum hardware by refining irrep truncation via energy density, developing perturbation-guided ansatz circuits, and releasing open-source tools for circuit construction and Clebsch-Gordan coefficient calculations.
This paper utilizes tensor networks to calculate the gauge-invariant entanglement entropy and stabilizer Rényi entropy of the ground state in (1+1)-dimensional SU(2) lattice gauge theory, revealing a critical crossover point where the system transitions from a high-magic regime to a low-magic regime, thereby offering new insights into the interplay between non-stabilizerness and entanglement relevant for quantum simulations.