Fig. 8
From: Numerical simulations of noisy quantum circuits for computational chemistry
The top row presents the ground-state electronic energy of NaH calculated using ADAPT-VQE with singlet-adapted UCCSD operators while the bottom row presents the corresponding fidelity of the prepared quantum state with the ground state calculated using conventional methods. The left and right columns distinguish between the parameters chosen through the COBYLA and L-BFGS optimization routines, respectively