537 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 establishes that the criteria for Symmetric Mass Generation (SMG) are satisfied by the staggered fermion action in lattice QCD, proposes a renormalization group flow around the SMG transition based on numerical results, and identifies Goldstone tetraquark meson states as a phenomenological signature of the "type-II" SMG phase.
This paper investigates Quantum Electrodynamics in two-dimensional de Sitter space, demonstrating how cosmological expansion drives the system through a pseudo-critical spectral region that governs the loss of adiabaticity, excitation growth, and the emergence of an irreversibility front detectable via local observables.
This paper demonstrates that within Yang-Mills-Proca theory, three static quarks generate a finite-energy color electric field with a Y-like spatial distribution and a toroidal color magnetic field, findings that align satisfactorily with lattice QCD calculations and are derived from a Lagrangian describing a spatially varying gluon condensate.
This paper demonstrates that enhanced sampling techniques, specifically Metadynamics with optimized bias potentials, effectively mitigate topological freezing in lattice gauge theories by reducing autocorrelation times, while also exploring strategies for accelerating bias buildup, extrapolating to larger volumes, and integrating orthogonal algorithmic improvements.
This presentation outlines the integration of recent advancements in extracting parton distribution functions (PDFs) from lattice QCD with established methods for solving inverse problems in spectral function reconstruction.
This paper investigates the symmetry structure of D staggered fermions, demonstrating that a specific one-link mass term preserving Onsager algebra symmetries generates a domain wall hosting massless Dirac fermions whose flavor symmetry and parity anomaly descend directly from the ultraviolet lattice Hamiltonian.
This paper presents a non-perturbative construction and renormalization of the energy-momentum tensor in both pure-gauge theory and full QCD on the lattice, utilizing imaginary chemical potential to analyze thermodynamic quantities like the trace anomaly and energy density across multiple coupling values in preparation for continuum limit extrapolations relevant to shear viscosity calculations.
This paper serves as a concise handbook summarizing numerically exact algorithms for treating fermion determinants in quantum Monte Carlo simulations, specifically distinguishing between stable dense matrix methods for small spatial volumes at low temperatures and efficient sparse matrix approaches for larger volumes.
This paper investigates the entropic bottlenecks in a 2D apolar spin model that drive a crossover transition to a novel nematic phase characterized by unbound topological defects and itinerant para-nematic fluids, ultimately leading to a global nematic order at a lower temperature.
This paper reviews the current state of the QCD phase diagram by synthesizing insights from lattice simulations, effective field theories, and chiral models to reconstruct the full phase structure for physical quark flavors and constrain matter properties in neutron star cores.