3 papers
hep-lat2026
Variance reduction with probing and Multilevel Monte Carlo in Lattice QCD
Andreas Frommer, Jose Jimenez-Merchan, Bruno Lang +2
Trace estimation is central in many lattice QCD computations, but the accuracy of the standard, stochastic Hutchinson method improves only with the square root of the sample size,…
hep-lat2026
Probing and graph coloring techniques for trace estimation in Lattice QCD
Mario Papace, Andreas Frommer, Jose Jimenez-Merchan +3
The computation of , where is the Wilson-Dirac matrix of Lattice QCD, is a fundamental and computationally demanding task with applications to disconnected…
hep-lat2024
The imaginary- dependence of the SU() spectrum
Claudio Bonanno, Claudio Bonati, Mario Papace +1
In this talk we will report on a study of the -dependence of the string tension and of the mass gap of four-dimensional SU() Yang--Mills theories. The spectrum at and…