Accurately computing the electronic properties of a quantum ring

Nature, Published online: 23 June 2021; doi:10.1038/s41586-021-03576-2

As a blueprint for high-precision quantum simulation, an 18-qubit algorithm that consists of more than 1,400 two-qubit gates is demonstrated, and reconstructs the energy eigenvalues of the simulated one-dimensional wire to a precision of 1 per cent.