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High Energy Physics - Lattice papers — page 68

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Tensor renormalization group study of 3D principal chiral model
We study the three-dimensional SU(2) principal chiral model (PCM) using different tensor renormalization group methods based on the triad and anisotropic decomposition of the tensor. The tensor…
Shinichiro Akiyama, Raghav G. Jha, Judah Unmuth-YockeyDec 18, 2023
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Topological charge unfreezing with AMReX
A new approach to the problem of topological freezing in gauge theories is introduced in which a physical volume preserving coarsening of the lattice induces sufficient energy variation in the…
Dean Howarth, Adam J PetersonDec 18, 2023
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Computation of the Kugo-Ojima function from lattice simulations
In addition to its connection with a standard confinement criterion, the Kugo-Ojima function constitutes an indispensable component in a multitude of applications in the gauge sector of QCD. In the…
Nuno Brito, Orlando Oliveira, Paulo J. Silva et al.Dec 18, 2023
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Anomaly non-renormalization, lattice QFT and universality of transport coefficients
Recently new methods have been introduced to investigate the non-renormalization properties of the anomalies at a non perturbative level and in presence of a lattice. The issue is relevant in a…
V. MastropietroDec 18, 2023
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Performance of two-level sampling for the glueball spectrum in pure gauge theory
The computation of the glueball spectrum is particularly challenging due to the rapid decay of the signal-to-noise ratio of the correlation functions. To address this issue, advanced techniques such…
Lorenzo Barca, Francesco Knechtli, Michael Peardon et al.Dec 18, 2023
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Progress in generating gauge ensembles with Stabilized Wilson Fermions
The continued generation of Nf=2+1 quark flavor gauge configurations using stabilized Wilson fermions by the open lattice initiative (OpenLat) is reported. We present the status of our ongoing…
Francesca Cuteri, Anthony Francis, Patrick Fritzsch et al.Dec 18, 2023
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Progresses on high-temperature QCD: Equation of State and energy-momentum tensor
We present first non-perturbative results for the renormalization constants of the QCD energy-momentum tensor, based on the framework of thermal QCD with shifted and twisted (for quarks only)…
Matteo Bresciani, Mattia Dalla Brida, Leonardo Giusti et al.Dec 18, 2023
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Searching for the first radial excitation of the (1232) in lattice QCD
We present a lattice QCD analysis of the -baryon spectrum, with the goal of finding the position of the 2s radial excitation of the (1232) ground state. Using smeared…
Liam Hockley, Waseem Kamleh, Derek Leinweber et al.Dec 18, 2023
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Systematic Improvement of x-dependent Unpolarized Nucleon Generalized Parton Distribution in Lattice-QCD Calculation
We present a first study of the effects of renormalization-group resummation (RGR) and leading-renormalon resummation (LRR) on the systematic errors of the unpolarized isovector nucleon generalized…
Jack Holligan, Huey-Wen LinDec 17, 2023
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Local Polyakov-loop fluctuation and center domains in quark-gluon plasma with many colors
The deconfinement transition in non-Abelian gauge theory is understood as spontaneous breaking of ZN symmetry at high temperatures. Accordingly, quark-gluon plasma generally includes some…
Yuto Nakajima, Hideo SuganumaDec 17, 2023
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Lattice Holography on a Quantum Computer
We explore the potential application of quantum computers to the examination of lattice holography, which extends to the strongly-coupled bulk theory regime. With adiabatic evolution, we compute the…
Ying-Ying Li, Muhammad Omer Sajid, Judah Unmuth-YockeyDec 16, 2023
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Primitive Quantum Gates for an SU(2) Discrete Subgroup: Binary Octahedral
We construct a primitive gate set for the digital quantum simulation of the 48-element binary octahedral (BO) group. This nonabelian discrete group better approximates SU(2) lattice…
Erik J. Gustafson, Henry Lamm, Felicity LovelaceDec 16, 2023
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Lattice QCD studies of the baryon resonance and the K0(700) and a0(980) meson resonances: the role of exotic operators in determining the finite-volume spectrum
Studies of the baryon resonance and the K0(700) and a0(980) meson resonances using Nf=2+1 lattice QCD for pion masses near 200 MeV are presented. The s-wave scattering…
John Bulava, Danny Darvish, Andrew D. Hanlon et al.Dec 15, 2023
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mB and fB() in 2+1 flavour QCD from a combination of continuum limit static and relativistic results
We present preliminary results for B-physics from a combination of non-perturbative results in the static limit with relativistic computations satisfying amheavy 1. Relativistic…
Alessandro Conigli, Julien Frison, Patrick Fritzsch et al.Dec 15, 2023
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A strategy for B-physics observables in the continuum limit
In a somewhat forgotten paper [1] it was shown how to perform interpolations between relativistic and static computations in order to obtain results for heavy-light observables for masses from, say,…
Alessandro Conigli, Julien Frison, Patrick Fritzsch et al.Dec 15, 2023
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The Twisted Gradient Flow strong coupling with Parallel Tempering on Boundary Conditions
We present a proposal for calculating the running of the coupling constant of the SU(3) pure-gauge theory, which combines the Twisted Gradient Flow (TGF) renormalization scheme with…
Claudio Bonanno, Jorge Luis Dasilva Golán, Massimo D'Elia et al.Dec 14, 2023
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Precision Determination of Baryon Masses including Isospin-breaking
We give an update on an ongoing project in which we calculate the masses of octet and decuplet baryons including isospin-breaking effects. To this end, we employ single- and two-state-fits to…
Alexander M. Segner, Andreas Risch, Hartmut WittigDec 14, 2023
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Hutch++ and XTrace to Improve Stochastic Trace Estimation
We present the analysis of two recently proposed noise reduction techniques, Hutch++ and XTrace, both based on inexact deflation. These methods were proven to have a better asymptotic convergence to…
Alessandro Cotellucci, Agostino PatellaDec 14, 2023
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MLMC: Machine Learning Monte Carlo for Lattice Gauge Theory
We present a trainable framework for efficiently generating gauge configurations, and discuss ongoing work in this direction. In particular, we consider the problem of sampling configurations from a…
Sam Foreman, Xiao-Yong Jin, James C. OsbornDec 14, 2023
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Baryon electric charge correlation as a magnetometer of QCD
The correlation between net baryon number and electric charge, 11 BQ, can serve as a magnetometer of QCD. This is demonstrated by lattice QCD computations using the highly improved…
Heng-Tong Ding, Jin-Biao Gu, Arpith Kumar et al.Dec 14, 2023
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High temperature U(1)A breaking in the chiral limit
We solve the long-standing problem concerning the fate of the chiral U(1)A symmetry in QCD-like theories at high temperature in the chiral limit. We introduce a simple instanton based random…
Tamas G. KovacsDec 14, 2023
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Toward a Ginsparg-Wilson Lattice Hamiltonian
To address quantum computation of quantities in quantum chromodynamics (QCD) for which chiral symmetry is important, it would be useful to have the Hamiltonian for a fermion satisfying the…
Michael ClancyDec 14, 2023
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Spin-taste structure of minimally doubled fermions
Minimally doubled fermions realize one degenerate pair of Dirac fermions on the lattice. Similarities to staggered fermions exist, namely, spin and taste degrees of freedom become intertwined, and a…
Johannes H. WeberDec 13, 2023
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On the spectrum of mesons in quenched Sp(2N) gauge theories
We report the findings of our extensive study of the spectra of flavoured mesons in lattice gauge theories with symplectic gauge group and fermion matter content treated in the quenched…
Ed Bennett, Jack Holligan, Deog Ki Hong et al.Dec 13, 2023
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Leveraging neural control variates for enhanced precision in lattice field theory
Results obtained with stochastic methods have an inherent uncertainty due to the finite number of samples that can be achieved in practice. In lattice QCD this problem is particularly salient in some…
Paulo F. Bedaque, Hyunwoo OhDec 13, 2023
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