Implementing noise reduction techniques into theOpenQ*D package
High Energy Physics - Lattice
2022-01-25 v1
Abstract
We present the results of testing a new technique for stochastic noise reduction in the calculation of propagators by implementing it in OpenQ*D for two ensembles with O(a) improved Wilson fermion action, with periodic boundary conditions and pion masses of 437 MeV and 331 MeV, for the connected vector and pseudoscalar correlators. We find that the technique yields no speedup compared to traditional methods, owning to the failure of its underlying assumption that the spectra of the spatial Laplacian and Dirac operators are sufficiently similar for the technique's purposes.
Keywords
Cite
@article{arxiv.2201.09729,
title = {Implementing noise reduction techniques into theOpenQ*D package},
author = {Lucius Bushnaq and Isabel Campos and Marco Catillo and Alessandro Cotellucci and Madeleine Dale and Jens Lücke and Marina Krstić Marinković and Agostino Patella and Mike Peardon and Nazario Tantalo},
journal= {arXiv preprint arXiv:2201.09729},
year = {2022}
}
Comments
The 38th International Symposium on Lattice Field Theory, 2021 Zoom/Gather@Massachusetts Institute of Technology, LATTICE2021 26th-30th July