Figure 9
From: Simulating \(Z_{2}\) lattice gauge theory with the variational quantum thermalizer
(Left) The fidelity of the approximation to the Gibbs state produced by VQT on the classical simulator (\(n_{s} = 10^{4}\)) and Δf as a function of \(\mu /m\) for \(T/m = 0.4\) on a system with \(N=8\) matter sites, corresponding to \(n_{q} = 7\) qubits in the resource-efficient formulation. (Right) The chiral condensate \(\langle \bar{\psi}\psi \rangle \) calculated on the same data sets