Figure 12From: Simulating \(Z_{2}\) lattice gauge theory with the variational quantum thermalizerThe fidelity of the Gibbs state produced using the Taylor-series approximated von Neumann entropy as a function of \(T/m\) at \(a\mu = 0\) for various truncation orders K on a system with \(N = 8\) matter sites. One sees that for low temperatures this approximation works wellBack to article page