Foley, Justin and Juge, K. Jimmy and Ó Cais, Alan and Peardon, Mike and Ryan, Sinéad M. and Skullerud, Jon-Ivar (2005) Practical all-to-all propagators for lattice QCD. Computer Physics Communications, 172 (3). pp. 145-162. ISSN 00104655

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Abstract

A new method for computing all elements of the lattice quark propagator is proposed. The method combines the spectral decomposition of the propagator, computing the lowest eigenmodes exactly, with noisy estimators which are ‘diluted’, i.e. taken to have support only on a subset of time, space, spin or color. We find that the errors are dramatically reduced compared to traditional noisy estimator techniques.

Item Type:	Article
Keywords:	Lattice QCD; Spectral decomposition; Stochastic estimators; Variance reduction;
Academic Unit:	Faculty of Science and Engineering > Research Institutes > Hamilton Institute Faculty of Science and Engineering > Theoretical Physics
Item ID:	15668
Identification Number:	https://doi.org/10.1016/j.cpc.2005.06.008
Depositing User:	Dr. Jonivar Skullerud
Date Deposited:	14 Mar 2022 16:20
Journal or Publication Title:	Computer Physics Communications
Publisher:	Elsevier
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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