36 citations · 98 across the 14 of their papers we have counts for
15 papers
Femtoscale imaging of the proton with Ioffe-time distributions
Robert G. Edwards, Joe Karpie, Christopher Monahan +5
Mapping how strongly interacting constituents are distributed within protons is a key goal of nuclear physics and a major direction of the future Electron Ion Collider program. We…
Reconstructing the full kinematic dependence of GPDs from pseudo-distributions
Hervé Dutrieux, Robert G. Edwards, Joe Karpie +7
We propose a reconstruction of the full dependence of unpolarized isovector proton generalized parton distributions (GPDs) and from lattice QCD data…
Accelerating multigrid with streaming chiral SVD for Wilson fermions in lattice QCD
Travis Whyte, Andreas Stathopoulos, Eloy Romero
A modification to the setup algorithm for the multigrid preconditioner of Wilson fermions in lattice QCD is presented. A larger basis of test vectors than that used in conventional…
Chiral rank- truncations for the multigrid preconditioner of Wilson fermions in lattice QCD
Travis Whyte, Andreas Stathopoulos, Eloy Romero
We present a modification to the setup algorithm for the multigrid preconditioner of Wilson fermions in lattice QCD. A larger number of test vectors than that used in conventional…
Towards Unpolarized GPDs from Pseudo-Distributions
Hervé Dutrieux, Robert G. Edwards, Colin Egerer +7
We present an exploration of the unpolarized isovector proton generalized parton distributions (GPDs) and in the pseudo-distribution formalism…
Optimizing Shift Selection in Multilevel Monte Carlo for Disconnected Diagrams in Lattice QCD
Travis Whyte, Andreas Stathopoulos, Eloy Romero +1
The calculation of disconnected diagram contributions to physical signals is a computationally expensive task in Lattice QCD. To extract the physical signal, the trace of the inver…
Non-singlet quark helicity PDFs of the nucleon from pseudo-distributions
Robert G. Edwards, Colin Egerer, Joseph Karpie +9
The non-singlet helicity quark parton distribution functions (PDFs) of the nucleon are determined from lattice QCD, by jointly leveraging pseudo-distributions and the distillation…
Towards the determination of the gluon helicity distribution in the nucleon from lattice quantum chromodynamics
Colin Egerer, Bálint Joó, Joseph Karpie +10
We present the first exploratory lattice quantum chromodynamics (QCD) calculation of the polarized gluon Ioffe-time pseudo-distribution in the nucleon. The Ioffe-time pseudo-distri…
The transversity parton distribution function of the nucleon using the pseudo-distribution approach
Colin Egerer, Christos Kallidonis, Joseph Karpie +8
We present a determination of the non-singlet transversity parton distribution function (PDF) of the nucleon, normalized with respect to the tensor charge at GeV from l…
Towards High-Precision Parton Distributions From Lattice QCD via Distillation
Colin Egerer, Robert G. Edwards, Christos Kallidonis +5
We apply the Distillation spatial smearing program to the extraction of the unpolarized isovector valence PDF of the nucleon. The improved volume sampling and control of excited-st…
Unpolarized gluon distribution in the nucleon from lattice quantum chromodynamics
Tanjib Khan, Raza Sabbir Sufian, Joseph Karpie +9
In this study, we present a determination of the unpolarized gluon Ioffe-time distribution in the nucleon from a first principles lattice quantum chromodynamics calculation. We car…
Probing for the Trace Estimation of a Permuted Matrix Inverse Corresponding to a Lattice Displacement
Heather Switzer, Andreas Stathopoulos, Eloy Romero +2
In this work, we study probing for the more general problem of computing the trace of a permutation of , say . The motivation comes from Lattice QCD where we need…
Efficient computation of baryon interpolating fields in Lattice QCD
Eloy Romero, Kostas Orginos
In this work we present an efficient construction of baryon interpolating fields for lattice QCD computations of two and three point functions. These are essential building blocks…
Multigrid deflation for Lattice QCD
Eloy Romero, Andreas Stathopoulos, Kostas Orginos
Computing the trace of the inverse of large matrices is typically addressed through statistical methods. Deflating out the lowest eigenvectors or singular vectors of the matrix red…
PRIMME_SVDS: A High-Performance Preconditioned SVD Solver for Accurate Large-Scale Computations
Lingfei Wu, Eloy Romero, Andreas Stathopoulos
The increasing number of applications requiring the solution of large scale singular value problems have rekindled interest in iterative methods for the SVD. Some promising recent…