28 citations · 28 across the 2 of their papers we have counts for
6 papers
Disconnected Loops with Twisted Mass Lattice QCD
Walter Wilcox, Dean Darnell, Ron Morgan +1
We give a general introduction and discussion of the issues involved in using the twisted mass formulation of lattice fermions in the context of disconnected loop calculations, inc…
Deflated Iterative Methods for Linear Equations with Multiple Right-Hand Sides
Ronald B. Morgan, Walter Wilcox
A new approach is discussed for solving large nonsymmetric systems of linear equations with multiple right-hand sides. The first system is solved with a deflated GMRES method that…
Deflation of Eigenvalues for GMRES in Lattice QCD
Ronald B. Morgan, Walter Wilcox
Versions of GMRES with deflation of eigenvalues are applied to lattice QCD problems. Approximate eigenvectors corresponding to the smallest eigenvalues are generated at the same ti…
Heatbath Noise Methods in Lattice QCD
Walter Wilcox
In a recent paper, de Forcrand has pointed out that matrix inversions using Gaussian noise need not be iterated to full convergence, but instead may be solved approximately and tre…
Noise Methods for Flavor Singlet Quantities
Walter Wilcox
A discussion of methods for reducing the noise variance of flavor singlet quantities ("disconnected diagrams") in lattice QCD is given. After an introduction, the possible advantag…
Precise Neutron Electric Form Factor from Lattice QCD
Walter Wilcox
A new calculation of the neutron electric form factor is described. Preliminary results for the connected part on a lattice are presented. The methods for calcula…