Efficient variational quantum eigensolver methodologies on quantum processors
This research compared various methods for finding the ground state energy of BeH2 using a hybrid quantum-classical algorithm called VQE on noisy quantum hardware. They tested different VQE variations, found that adaptive VQE performed best in noiseless settings, and implemented error mitigation techniques like ZNE and TREX to improve accuracy. The findings show VQE is useful for noisy devices.