Yet, such calculations also offer a source of optimism.
Yet, such calculations also offer a source of optimism. Although 20 million qubits looks out of reach, it’s a lot less than the one billion qubits of previous estimates4. And researcher Michael Beverland at Microsoft Quantum, who was first author of the 2022 preprint2, thinks that some of the obstacles facing quantum chemistry calculations can be overcome through hardware breakthroughs.