Mitigating off-resonant error in the cross-resonance gate
Mohammad Moein Malekakhlagh, Easwar Magesan
APS March Meeting 2022
The computation of molecular excitation energies is essential for predicting photo-induced reactions of chemical and technological interest. While the classical computing resources needed for this task scale poorly, quantum algorithms emerge as promising alternatives. In particular, the extension of the variational quantum eigensolver algorithm to the computation of the excitation energies is an attractive option. However, there is currently a lack of such algorithms for correlated molecular systems that is amenable to near-term, noisy hardware. In this work, we propose an extension of the well-established classical equation of motion approach to a quantum algorithm for the calculation of molecular excitation energies on noisy quantum computers. In particular, we demonstrate the efficiency of this approach in the calculation of the excitation energies of the LiH molecule on an IBM Quantum computer.
Mohammad Moein Malekakhlagh, Easwar Magesan
APS March Meeting 2022
Thomas Steckmann, Alireza Seif, et al.
APS March Meeting 2024
Diana Chamaki, Stuart Hadfield, et al.
APS March Meeting 2023
Edward H. Chen, Guo-Yi Zhu, et al.
Nature Physics