23 citations · 35 across the 9 of their papers we have counts for
9 papers
Near-threshold states in coupled scattering from lattice QCD
Travis Whyte, David J. Wilson, Christopher E. Thomas
The first determination of doubly-charmed isospin-0 coupled-channel scattering amplitudes from lattice QCD is presented. The finite-volume spectrum is compu…
Multipolynomial Monte Carlo Trace Estimation
Paul Lashomb, Ronald B. Morgan, Travis Whyte +1
In lattice QCD the calculation of disconnected quark loops from the trace of the inverse quark matrix has large noise variance. A multilevel Monte Carlo method is proposed for this…
Multi-Polynomial Monte Carlo for Trace Estimation in Lattice QCD
Paul Lashomb, Ronald B. Morgan, Travis Whyte +1
Estimating the trace of the inverse of a large matrix is an important problem in lattice quantum chromodynamics. A multilevel Monte Carlo method is proposed for this problem that u…
High-degree Polynomial Noise Subtraction
Paul Lashomb, Ronald B. Morgan, Travis Whyte +1
In lattice QCD, the calculation of physical quantities from disconnected quark loop calculations have large variance due to the use of Monte Carlo methods for the estimation of the…
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…
Two-Grid Deflated Krylov Methods for Linear Equations
Ronald B. Morgan, Travis Whyte, Walter Wilcox +1
An approach is given for solving large linear systems that combines Krylov methods with use of two different grid levels. Eigenvectors are computed on the coarse grid and used to d…