Performance studies of the two-step multiboson algorithm in compact lattice QED

TL;DR

This paper compares the efficiency of the two-step multiboson algorithm with the hybrid Monte Carlo method in simulating compact lattice QED, highlighting TSMB's competitiveness in different phases.

Contribution

It provides a performance evaluation of TSMB versus HMC in lattice QED, an area with limited prior comparative studies.

Findings

TSMB is at least as efficient as HMC in the tested regimes.

Autocorrelation times are extensively measured, providing detailed performance insights.

Preliminary results suggest TSMB's potential as a viable alternative to HMC.

Abstract

The performance of the two-step multiboson (TSMB) algorithm is investigated in comparison with the hybrid Monte Carlo (HMC) method for compact lattice QED with standard Wilson fermions both in the Coulomb and confinement phases. The restriction to QED allows for extensive measurements of autocorrelation times. Preliminary results show that the TSMB algorithm is at least competitive with standard HMC.