Approaching the master-field: Hadronic observables in large volumes

Understand

The master-field approach to lattice QCD envisions performing calculations on a small number of large-volume gauge-field configurations.

• Substantial progress has been made recently in the generation of such fields, and this must be joined with measurement strategies that take advantage of the large volume.
• In these proceedings, we describe how to compute simple hadronic quantities efficiently and estimate their errors in the master-field approach, i.e.
• by studying cross-correlations of observables on a single configuration.