- (a) In this figure we have plotted the transition energy from the ground state to the labeled excited state as a function of the voltage parameter \( \lambda \). The labeled states are the computational basis states when \( \lambda = 0 \).
- (b) The von Neumann entropy of the five lowest excited states of the two-body Hamiltonian as a function of the configuration parameter \( \lambda \). The ground state has zero entropy, or close to zero entropy. We have included the points for the double and triple degeneracy points. \( \lambda_{II} \) and \( \lambda_{III} \) in the figure. The von Neumann entropy is calculated using the binary logarithm.
- (c) In this figure we have plotted the anharmonicites for the left well (\( \alpha^L \)) and the right well (\( \alpha^R \)) as a function of the well parameterization \( \lambda \). We have also included the detuning \( \Delta \omega = \omega^R - \omega^L \) between the two wells. We have marked configuration II at \( \lambda_{II} \approx 0.554 \) and configuration III at \( \lambda_{III} = 1 \).