55 citations · 308 across the 14 of their papers we have counts for
16 papers
Automated Grammar-based Algebraic Multigrid Design With Evolutionary Algorithms
Dinesh Parthasarathy, Wayne Mitchell, Arjun Gambhir +2
Although multigrid is asymptotically optimal for solving many important partial differential equations, its efficiency relies heavily on the careful selection of the individual alg…
Di-nucleons do not form bound states at heavy pion mass
John Bulava, M. A. Clark, Arjun S. Gambhir +16
We perform a high-statistics lattice QCD calculation of the low-energy two-nucleon scattering amplitudes. In order to address discrepancies in the literature, the calculation is pe…
Detailed analysis of excited state systematics in a lattice QCD calculation of
Jinchen He, David A. Brantley, Chia Cheng Chang +14
Excited state contamination remains one of the most challenging sources of systematic uncertainty to control in lattice QCD calculations of nucleon matrix elements and form factors…
Scale setting the Möbius Domain Wall Fermion on gradient-flowed HISQ action using the omega baryon mass and the gradient-flow scales and
Nolan Miller, Logan C Carpenter, Evan Berkowitz +14
We report on a sub-percent scale determination using the omega baryon mass and gradient-flow methods. The calculations are performed on 22 ensembles of highly improved,…
from Möbius domain-wall fermions solved on gradient-flowed HISQ ensembles
Nolan Miller, Henry Monge-Camacho, Chia Cheng Chang +15
We report the results of a lattice quantum chromodynamics calculation of using Möbius domain-wall fermions computed on gradient-flowed highly-improved stagger…
Lattice QCD Determination of
André Walker-Loud, Evan Berkowitz, David A. Brantley +13
The nucleon axial coupling, , is a fundamental property of protons and neutrons, dictating the strength with which the weak axial current of the Standard Model couples to nucl…
The Stochastic Feynman-Hellmann Method
Arjun Singh Gambhir, Evan Berkowitz, David Brantley +7
The Feynman-Hellmann method, as implemented by Bouchard et al. [1612.06963], was recently employed successfully to determine the nucleon axial charge. A limitation of the method wa…
Short Range Operator Contributions to decay from LQCD
Henry Monge-Camacho, Evan Berkowitz, David Brantley +11
The search for neutrinoless double beta decay of nuclei is believed to be one of the most promising means to search for new physics. Observation of this very rare nuclear process,…
Quantum annealing for systems of polynomial equations
Chia Cheng Chang, Arjun Gambhir, Travis S. Humble +1
Numerous scientific and engineering applications require numerically solving systems of equations. Classically solving a general set of polynomial equations requires iterative solv…
Simulating the weak death of the neutron in a femtoscale universe with near-Exascale computing
Evan Berkowitz, M. A. Clark, Arjun Gambhir +9
The fundamental particle theory called Quantum Chromodynamics (QCD) dictates everything about protons and neutrons, from their intrinsic properties to interactions that bind them i…
Nuclear modification of scalar, axial and tensor charges from lattice QCD
Emmanuel Chang, Zohreh Davoudi, William Detmold +6
Complete flavour decompositions of the scalar, axial and tensor charges of the proton, deuteron, diproton and He at SU(3)-symmetric values of the quark masses corresponding to…
First lattice QCD study of the gluonic structure of light nuclei
Frank Winter, William Detmold, Arjun S. Gambhir +4
The role of gluons in the structure of the nucleon and light nuclei is investigated using lattice quantum chromodynamics (QCD) calculations. The first moment of the unpolarised glu…
Accelerating Lattice QCD Multigrid on GPUs Using Fine-Grained Parallelization
M. A. Clark, Bálint Joó, Alexei Strelchenko +3
The past decade has witnessed a dramatic acceleration of lattice quantum chromodynamics calculations in nuclear and particle physics. This has been due to both significant progress…
Algorithms for Disconnected Diagrams in Lattice QCD
Arjun Singh Gambhir, Andreas Stathopoulos, Kostas Orginos +3
Computing disconnected diagrams in Lattice QCD (operator insertion in a quark loop) entails the computationally demanding problem of taking the trace of the all to all quark propag…
Deflation as a Method of Variance Reduction for Estimating the Trace of a Matrix Inverse
Arjun Singh Gambhir, Andreas Stathopoulos, Kostas Orginos
Many fields require computing the trace of the inverse of a large, sparse matrix. The typical method used for such computations is the Hutchinson method which is a Monte Carlo (MC)…
Improved Sampling Algorithms in Lattice QCD
Arjun Singh Gambhir, Kostas Orginos
Reverse Monte Carlo (RMC) is an algorithm that incorporates stochastic modification of the action as part of the process that updates the fields in a Monte Carlo simulation. Such u…