First large-N gluino condensate matches the weak-coupling value
Lattice data at N = 169, 289, 361 give 1.77(65), compatible with the analytic prediction 1 and ending a 40-year debate.
hep-lat
High Energy Physics - Lattice
Lattice field theory. Phenomenology from lattice field theory. Algorithms for lattice field theory. Hardware for lattice field theory.
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Meson wave packets from O(L^3) to O(L^2) CNOTs
A non-variational circuit with O(L) depth prepares meson scattering states; QSE operators reach 99.9% fidelity on vector mesons.
· “Scalable Quantum Algorithm for Meson Scattering in a Lattice Gauge Theory”
Three spectral methods agree on Upsilon mass
A 0.3 GeV smearing floor sets the widths, so thermal broadening cannot yet be read off.
· “The NRQCD Upsilon spectrum at non-zero temperature using Backus-Gilbert regularisations”
Nucleon-sigma state is the dominant contaminant of sigma-term fits
A variational basis with nucleon-sigma operators removes the contamination, so scalar charges plateau early.
· “Nucleon sigma terms with a variational analysis from Lattice QCD”
Zc(3900) pole position decides if DDD* is bound
Measure the Zc(3900) pole: it tells whether the three-hadron DDD* state is bound or not.
· “Constraining the DDD^* three-body bound state via the Z_c(3900) pole”
Block Lanczos supersedes GEVP for lattice QCD spectra
One GEVP solve is a single Lanczos step; further steps converge faster and give two-sided error bounds.
· “Block Lanczos algorithm for lattice QCD spectroscopy and matrix elements”
Two-loop accuracy for baryon distribution amplitudes
Updated lattice QCD numbers for octet baryons cut renormalization errors; momentum fractions barely shift.
· “Updated determination of light-cone distribution amplitudes of octet baryons in lattice QCD”
Adjoint quarkonium correlators equal rescaled fundamental ones
If right, quarkonium diffusion coefficients are just Casimir multiples of the heavy-quark value.
Four-flavor lattice QCD steadies the strong-coupling value
A static-energy extraction with dynamical charm matches earlier 2+1-flavor results and the FLAG average.
Lattice spin operators reproduce the Ising CFT stress tensor
Monte Carlo checks on triangular and hexagonal lattices confirm one-point, three-point, and TT correlators.
· “Energy-momentum tensor in the 2D Ising CFT in full modular space”
New lattice QCD data pin down hybrid-meson forces and gluelump masses
Quark-gluon hybrid potentials and their string-breaking thresholds measured with 420 MeV pions.
· “Hybrid static potentials and gluelumps on N_f=3+1 ensembles”
Bottomonia survive hot QCD with unchanged masses to 251 MeV
Thermal widths grow with temperature and state size, reshaping how quarkonium melts in heavy-ion collisions.
· “In-medium bottomonium properties from lattice NRQCD calculations with extended meson operators”
Rotation can strengthen chiral symmetry breaking in quark matter
Fitting the quark model's coupling to lattice data reverses rotation's effect and lifts the critical endpoint.
· “Chiral vortical catalysis constrained by LQCD simulations”
Quark model predicts exotic tetraquarks near 7.1 GeV
New narrow states with forbidden quantum numbers could appear in J/ψ pair data; X(6400) and X(6600) remain unexplained.
· “Fully charmed P-wave tetraquark resonant states in the quark model”
Metropolis simulation gives z≈3 in 3D
A stochastic fluid-dynamics algorithm confirms model-H critical scaling and tracks the z=4-to-critical crossover.
Lanczos and Prony methods are the same for correlators
Two popular algorithms for extracting energy levels turn out to be one, so Lanczos can't cure the signal-to-noise problem.
· “On the equivalence of Prony and Lanczos methods for Euclidean correlation functions”
Impurity trick sharpens critical-temperature estimates to 1e-7
Replacing bond weights with impurity matrices computes magnetization moments faster than MPS and beats its cost scaling.
· “Multi-impurity method for the bond-weighted tensor renormalization group”
Quantum tech takes on dark matter
A review maps four ways quantum information science could meet particle physics' biggest open problems.
Stochastic symmetry layer lifts flow samplers to 0.999 ESS
Stochastic modulation lets flows capture exact and broken lattice symmetries with near-perfect sampling.
· “SESaMo: Symmetry-Enforcing Stochastic Modulation for Normalizing Flows”
Tensor-network entropy algorithm reproduces central charge 1/2
A new tensor-network construction handles subsystems of any size and matches c = 1/2 in the critical Ising model.
· “Entanglement entropy by tensor renormalization group approach”
Qumode lattices simulate real-time phi-4 scattering in 1+1D
A continuous-variable lattice reproduces the free-field propagator and shows how mass and coupling steer collisions.
· “Real-Time Scattering Processes with Continuous-Variable Quantum Computers”
Direct CP violation in kaon decay now continuum-extrapolated: 17.5e-4
Preliminary lattice result 17.5(6.8)(4.9)(5.0)×10^-4 agrees with experiment 16.6(2.3) and earlier G-parity values.
· “Delta I =1/2 process of Ktoππ decay on multiple ensembles with periodic boundary conditions”
HAL QCD binding energies survive the left-hand cut
Even when a bound state sits on the pion-exchange cut, the HAL QCD pole converges to the exact binding momentum.
Parameter-free isospin splitting formula passes lattice test
No free parameters: the dilaton model's prediction for the charged-neutral pion split matches the data.
· “Chiral and isospin breaking in the two-flavor Schwinger Model”
Chiral dynamics still underpins low-energy QCD
A status review shows pion-pion, nuclear, and Big Bang results all still need the chiral QCD framework.
New projections make all eight gluon GPDs computable on the lattice
Exact projections let first-principles lattice QCD reach all eight gluon GPDs.
Flow upsamples 4x4 MCMC samples to 128x128 field theories
RG-inspired flow keeps ESS/N above 80 percent in symmetric and broken phases for 2D phi4.
· “Super-Resolving Normalising Flows for Lattice Field Theories”
Numerics back the flow M(3,10)+φ1,7→M(3,8)
Renormalized truncation spectra match M(3,8) on the PT boundary; M(3,5) and M(3,7) fits fail.
· “Testing the RG-flow M(3,10)+φ_(1,7)to M(3,8) with Hamiltonian Truncation”
Nucleon 2s excitation stands firm at ~2 GeV under quenching
Suppressing meson-baryon dressing leaves the 2s state unmoved, tying it to the N(1710) and N(1880) resonances.
· “Physical interpretation of the 2s excitation of the nucleon”
Vortex signal places QCD deconfinement at twice the chiral transition
At pion mass 239 MeV, centre vortex percolation survives to T = 321(6) MeV, hinting quarks stay confined past chiral restoration.
· “Centre vortex evidence for a second finite-temperature QCD transition”
Magnetic coupling, not angular momentum, shapes rotating gluon plasma
Lattice results: deconfinement at the center, confinement at the rim, contrary to the Tolman-Ehrenfest law.
· “On the origin of mixed inhomogeneous phase in vortical gluon plasma”
A new thermal phase of QCD may appear between 200 and 230 MeV
Deep infrared quark modes proliferate and turn critical, tying the quark-gluon plasma to Anderson localization.
Orbifold lattice recovers Kogut-Susskind Hamiltonian exactly
Infinite-mass limit turns the orbifold action into the Wilson action with Haar measure, enabling efficient quantum circuits.
· “Exponential speedup in quantum simulation of Kogut-Susskind Hamiltonian via orbifold lattice”
Quantum computer simulates particle scattering in a gauge theory
IBM hardware tracks electron-positron and meson collisions past impact, showing confinement and scar-like inelastic dynamics.
· “Observation of hadron scattering in a lattice gauge theory on a quantum computer”
Streaming SVD speeds Wilson fermion multigrid by 1.7x
A truncated chiral-SVD test-vector basis keeps near-null space information with far less memory, a step toward GPU-friendly multigrid.
· “Accelerating multigrid with streaming chiral SVD for Wilson fermions in lattice QCD”
Two-color QCD chiral transition can be second order
New stable fixed points appear in FRG, allowing a continuous transition if the axial anomaly vanishes at T_c.
Lattice QCD data grid rebuilt for token-based sharing
New metadata schemata and containerised catalogues aim to make gauge configurations FAIR and shareable.
· “International Lattice Data Grid 2.0: Status and Progress”
Squeezed SU(3) gauge theory may hide a new first-order transition
Two-Polyakov-loop model puts it at L_x T ≈ 1.17 and T/T_d ≈ 2.69, with 2D Ising endpoints.
Physical-mass lattice QCD pins down nucleon axial form factors
No chiral extrapolation needed; PCAC and pion pole dominance hold in the continuum limit.
· “Isovector axial and pseudoscalar form factors from twisted mass lattice QCD at the physical point”
Persistent spin grids make electron spin decay vanish in 2D
A Wilson-loop condition classifies the grids and predicts spin transport in any direction without fine-tuned spin-orbit matching.
· “Persistent spin grids with spin-orbit coupled 2D electron gas”
g_A lands on experiment: 1.250(24) from physical-point QCD
No chiral extrapolation needed: sigma_piN = 41.9(8.1) MeV and tensor/scalar charges follow from three physical-mass ensembles.
· “Nucleon axial, tensor, and scalar charges and σ-terms in lattice QCD”
Give Upsilon and chi_b1 mass plus thermal width from lattice moments
A derivative-moment method skips spectral reconstruction and tracks how the states melt with temperature.
· “NRQCD Bottomonium at non-zero temperature using time-derivative moments”
Inverse Cauchy method continues QCD to real chemical potential
The inverse Cauchy method reproduces Padé and Taylor results for QCD up to mu_B/T ~ 2.
· “On analytic continuation from imaginary to real chemical potential in Lattice QCD”
SVD-truncated chiral vectors cut Wilson multigrid solve times
A rank-24 truncation of a 96-vector smoother basis lowers solve time on HSC and MILC ensembles in every test reported.
· “Chiral rank-k truncations for the multigrid preconditioner of Wilson fermions in lattice QCD”
Lattice Weyl fermions become vector-like in a monopole background
The Wilson term adds an opposite-chirality mode at the sphere's center, blocking a lattice chiral gauge theory.
Path-picking diffusion sampler covers all topological sectors
Where normalizing flows and plain diffusion models collapse to one ring or one peak, this network generates all of them.
· “Exploring Generative Networks for Manifolds with Non-Trivial Topology”
Euclidean data give tightest bounds on real-time correlators
A finite convex dual, using only spectral positivity, turns ill-posed analytic continuation into certified bounds
Quantum rotor test refutes no-CP-violation claim
The simplest theory with a theta term gives a nonzero topological susceptibility, so the strong CP problem survives this toy model.
· “Lattice techniques to investigate the strong CP problem: lessons from a toy model”
Stable B→D(*) form factors emerge from new lattice analysis
Preliminary 2+1+1-flavor results at four spacings set the stage for a precise |Vcb| from B→D(*) decays.
Lattice QCD covers nearly all kinematics of B→π and D→π decay
A single heavy-HISQ setup from charm to bottom mass targets sharper |Vub| and |Vcd| values.
· “Towards more accurate B_((s))rightarrowπ(K) and D_((s))rightarrowπ(K) form factors”
One-loop beta function measured to under 10% in large-N gauge theory
A stochastic lattice method confirms the coupling's universal running, with finite-volume effects under control.
Lattice quantum gravity computes Planck-scale spacetime
Causal dynamical triangulations produce quantitative evidence for an emergent four-dimensional de Sitter universe.
· “Nonperturbative quantum gravity unlocked through computation”
Relativistic nuclear force matches standard accuracy at lower order
Covariant chiral force reproduces NN scattering to 200 MeV with fast convergence, aiding ab initio nuclear theory.
· “Relativistic chiral nuclear forces: status and prospects”
Wavelet flow splits field theory into clean resolution blocks
Diagonal blocks are labelled by resolution, and the coarsest one reproduces the low-lying normal mode spectrum.
Toric-code thresholds beat MWPM in new simulation
Z(2)-gauge mapping sets surface-code thresholds at 0.0068, 0.06, 0.0144—above MWPM, so better decoders may help.
· “Quantum Error Correction and Z(2) Lattice Gauge Theories”
Charged kaon polarizability comes out positive in lattice QCD
Four-point lattice QCD avoids background-field issues and points to a kaon polarizability above the ChPT value.
· “Electric Polarizability of Charged Kaons from Lattice QCD Four-Point Functions”
Optimal profiles reduce excited-state noise in static-light mesons
Profile-weighted smearing gives a plateau from t/a=4 and new S, P1/2, P3/2 splittings at two pion masses.
· “Static-light meson spectroscopy with optimal distillation profiles”
Hot plasma broadens bottomonia but leaves their masses intact
Up to 3S and 3P states persist with vacuum masses, pointing to broadening, not screening.
· “Non-relativistic QCD Study of Excited Bottomonia at Finite Temperatures on a Fine Lattice”
Chiral symmetry returns at high T
Lattice QCD screening masses show vector-axial degeneracy at Tc~165 MeV but a 40 MeV chiral-spin splitting at 2Tc.
· “Symmetry of screening masses of mesons in two-flavor lattice QCD at high temperatures”
Every Boltzmann partition function gets an exact tensor network
TRG starts from any Boltzmann weight product, and truncation accuracy stops depending on the initial tensor.
· “Initial tensor construction for the tensor renormalization group”
Three vacuum parameters organize light hadron physics
With instanton size, density, and quark mass, the model computes condensates, matrix elements, and form factors.
· “Generic framework for non-perturbative QCD in light hadrons”
Dynamical 't Hooft flux beats topological freezing in lattice SU(2)
A random Z2 two-form flux shuffles the topological charge, letting hybrid Monte Carlo sample sectors far faster than in SU(2).
· “Monte Carlo Simulation of the SU(2)/mathbb{Z}₂ Yang--Mills Theory”
Bias-corrected ML matches truth-level fits for lattice correlators
Per-configuration predictions give statistical uncertainties without bootstrapping or retraining; a ratio benchmark matches most of the…
· “Using AI for Efficient Statistical Inference of Lattice Correlators Across Mass Parameters”
Dense two-color QCD breaks the speed-of-sound bound
New T = 40 MeV lattice runs confirm the BCS phase is stiffer than a free relativistic gas.
· “Phase and equation of state of finite density QC₂D at lower temperature”
Lattice QCD fixes dominant muon g-2 term at 0.69 percent
Most precise lattice value yet (655.2 x 10^-10), with windowed and full-region analyses agreeing to 1.0(5.5).
Kaon charge radius computed to 8x higher precision than experiment
No-fit spatial-moment method gives pion radius 0.423(10) fm^2 and kaon 0.373(4) fm^2.
· “Calculation of meson charge radii using model-independent method in the PACS10 configuration”
Tetraquarks predicted at 15.7 and 9.7 GeV with widths 36 and 55 MeV
Fully heavy, charged states made of bottom and charm quarks should decay into ordinary meson pairs.
Lattice ratio method yields psi(3770) width close to experiment
A narrow-width approximation extracts the DD mixing and reproduces the measured decay width on two volumes.
Lattice curve spans weak and strong coupling in BMN model
Matches perturbation theory at one end and supergravity at the other, hinting at a change in transition order.
· “Finite-temperature phase diagram of the BMN matrix model on the lattice”
One-loop match opens lattice route to the TMD soft function
A one-loop match plus a divergence-cancelling ratio makes Wilson-line data yield the Collins-Soper kernel.
One plaquette shows chiral and magnetic phases in SO(3) gauge theory
Exact diagonalization of one SO(3) plaquette hints at confinement and chiral breaking in 2+1d.
· “Towards the phase diagram of fermions coupled with SO(3) quantum links in (2+1)-D”
Axial U(1) may restore right at QCD's chiral crossover
Two-flavor QCD with near-chiral quarks sees the axial anomaly vanish at the crossover temperature.
· “Study of symmetries in finite temperature N_f=2 QCD with M\"obius Domain Wall Fermions”
Discrete-time Dirac sea makes pair creation release energy
Modular energy creates a bad boundary at E=±π/δt; a modified walk can hide it, at the cost of doubling.
Two-loop heat flips phi^4 perturbation theory
At the hottest lattice, two-loop predictions miss data and invert temperature ordering, pointing to real-pole propagators.
· “Non-perturbative constraints on perturbation theory at finite temperature”
Infinite-color gluino-glue mass: 1.21(11)
First non-perturbative SUSY-limit value; it fixes the large-N mass gap and tops SU(2), SU(3).
· “The mass of the gluino-glue bound state in large-N mathcal{N}=1 Supersymmetric Yang-Mills theory”
Three charmed baryons predicted to have zero polarizability
Order-p³ chiral theory gives Λ_c and Ξ_c zero polarizability, sextet baryons large magnetic response.
5D regulator erases QCD's strong CP problem
Fermion zero modes deep in the fifth dimension suppress instantons and give a massive η′ without an axion.
Critical mass of the Schwinger model is 0.333561
Four independent finite-size criteria agree to five digits at theta = pi.
· “Precision study of the massive Schwinger model near quantum criticality”
Transfer-matrix filter stabilizes lattice QCD energies
Generalized eigenvalue extraction plus adaptive kernel-density filtering removes spurious states without manual fit-window choice.
· “Estimating energy levels from lattice QCD correlation functions using a transfer matrix formalism”
SU(3) flow sampler quality scales with steps per lattice site
First stochastic normalizing flow for SU(3) gauge theory reaches fixed quality at half the Monte Carlo steps.
· “Scaling of Stochastic Normalizing Flows in SU(3) lattice gauge theory”
