Stochastic All-to-All Propagators for Baryon Correlators

Understand

The effectiveness of various dilution schemes in the evaluation of baryonic two-point functions is compared.

• The error of a representative set of observables as a function of the number of Dirac matrix inversions is used as a basis for comparison.
• To achieve an equivalent reduction in error, we demonstrate that an increase in the number of dilution projectors on a single noise source usually requires fewer inversions than the use of multiple noise sources.
• This exploratory study was performed on 100 quenched gauge configurations and will be applied to the calculation of low-lying hadron spectra.