Figure 1

Eigenvalues of the FIM for the quantum simulation model \(\pmb{\{ H_{1}^{\mathrm{per}}, S_{z}\}}\) , evaluated for 10 spins, at low temperature ( \(\pmb{\beta=10}\) ) and intermediate temperature ( \(\pmb{\beta=1}\) ). There are two dominant eigenvalues for all \(B^{0}\) and these are shown in color, while the others are shown in gray.