Extended Data Fig. 3: Calibration of the interference phase.
From: Frustration- and doping-induced magnetism in a Fermi–Hubbard simulator
Atom number imbalance \({\mathcal{I}}\) between the two sublattices associated with potential (equation (3)), averaged over the whole cloud, as the interference phase ϕ is scanned using the electronic phase-shifter phase ϕp. We perform a linear regression to find out the phase ϕp at which the imbalance cancels, which corresponds to ϕ = π/2 (mod π). The maximum interference phase ϕ = 0 (mod π) is then obtained by increasing the phase-shifter phase ϕp by π.
