BASF and HQS Quantum Simulations, both German companies, collaborates in quantum chemistry for prediction of chemical reactivity.
They used the hybrid quantum-classical variational quantum eigensolver algorithm in combination with the unitary coupled-cluster ansatz (UCCSD-VQE) that could provide accurate results before the dawn of error-tolerant quantum computing. They studied the accuracy of the obtained energies for nine small molecular systems as well as for four exemplary chemical reactions by comparing to well-established electronic structure methods. (BASF)
