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.

Bushnaq, L., Campos, I., Catillo, M., Cotellucci, A., Dale, M., Lucke, J., et al. (2022). Implementing noise reduction techniques into the OpenQ*D package. POS PROCEEDINGS OF SCIENCE, 396 [10.22323/1.396.0363].

Implementing noise reduction techniques into the OpenQ*D package

Tantalo N.
2022-01-01

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.
2022
Pubblicato
Rilevanza internazionale
Articolo
Comitato scientifico
Settore FIS/02 - FISICA TEORICA, MODELLI E METODI MATEMATICI
English
Bushnaq, L., Campos, I., Catillo, M., Cotellucci, A., Dale, M., Lucke, J., et al. (2022). Implementing noise reduction techniques into the OpenQ*D package. POS PROCEEDINGS OF SCIENCE, 396 [10.22323/1.396.0363].
Bushnaq, L; Campos, I; Catillo, M; Cotellucci, A; Dale, M; Lucke, J; Marinkovic, Mk; Patella, A; Peardon, M; Tantalo, N
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/314439
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