Update on two-level sampling for glueball observables in quenched QCD

TL;DR

This paper advances methods for calculating glueball observables in quenched QCD by integrating two-level sampling with distillation, demonstrating progress on a specific lattice ensemble.

Contribution

It introduces a combined two-level sampling and distillation approach for improved disconnected diagram calculations in quenched QCD.

Findings

Progress achieved on a $16^3\times 64$ lattice at $\beta=6.0$

Application to a pion mass of approximately 760 MeV

Enhanced efficiency in glueball observable computations

Abstract

We report our progress in combining a two-level sampling algorithm with distillation techniques for calculations of disconnected diagrams in quenched QCD. The simulations are performed on a single ensemble at $\beta=6.0$ and volume $V=16^3\times 64$, and at a pion mass of $m_\pi\approx 760~\mathrm{MeV}$.