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 introduces the order-separated Grassmann higher-order tensor renormalization group (OS-GHOTRG) method to compute strong-coupling expansions of thermodynamical observables for two-dimensional QCD with staggered quarks, demonstrating that fitting these expansions to transition functions significantly extends their range of applicability near the phase transition.
This paper presents a method for extracting ground-state heavy-light meson semileptonic decay form factors from finite-time correlation functions by addressing excited-state contamination through summed ratios and chiral perturbation theory, utilizing four CLS ensembles with improved Wilson fermions to support future and calculations.
This paper proposes and analyzes a novel random matrix model that successfully describes the QCD Kondo phase by incorporating both chiral and spin symmetries, revealing three distinct phases including a coexistence state with an altered Kondo condensate pairing, and deriving their corresponding low-energy effective theories and partition functions.
This paper proposes enhancing the phenomenological application of the Boyd-Grinstein-Lebed -expansion for hadronic form factors by explicitly incorporating a unitarity filter derived from its equivalence to the Dispersion Matrix method and by introducing kernel functions to apply multiple dispersive bounds, thereby enabling more rigorous, model-independent analyses of various physical processes.
This paper extends a multiple dispersive bounds strategy to sub-threshold branch-cuts by modifying the standard -expansion to simultaneously incorporate pair-production and sub-threshold constraints, demonstrating through numerical analysis of the charged kaon form factor that this double-bound approach yields more precise extrapolations and greater stability against outer function choices than existing single-bound methodologies.
This paper investigates the chiral anomaly of Kogut-Susskind fermions in a (3+1)-dimensional Hamiltonian formalism by defining a non-onsite axial charge that, while generally non-conserved, satisfies the continuum anomalous conservation law for specific link configurations, as confirmed by numerical simulations.
By mapping the high-density heavy-quark limit of QCD to a three-dimensional three-state Potts model with a complex external field, the study reveals that the finite-temperature phase transition evolves from first-order to crossover and back to first-order as density increases, strongly suggesting a first-order transition persists in the high-density heavy-quark region of QCD.
This paper presents an extension of the Evolving density matrices on Qubits (EOQ) framework that overcomes the fermionic sign problem by combining classical stochastic sampling with linear combinations of unitaries, enabling efficient fault-tolerant preparation of fermionic states with circuit complexity and validated through simulations of the Thirring model.
This paper demonstrates that the autonomous AI system PhysMaster can fully automate the complex, multi-step extraction of the Collins-Soper kernel from Lattice QCD data, reducing the workflow duration from months to hours while achieving precision consistent with state-of-the-art traditional methods and stabilizing signals at large transverse separations.
This paper presents a quantitative lattice study of two-color QCD at finite chemical potential, revealing that chromo-electromagnetic field strengths undergo a finite-volume crossover near with initial suppression followed by enhancement, while the difference between squared electric and magnetic fields grows monotonically with density.