Cloud Quantum Computing of an Atomic Nucleus

We report a quantum simulationof the deuteron binding energyon quantum processors accessed via cloud servers. We use a Hamiltonian from pionless effective field theoryat leading order. We design a low-depth version of the unitary coupled-clusteransatz, use the variational quantum eigensolver algorithm, and compute the binding energyto within a few percent. Our work is the first step towards scalable nuclear structurecomputations on a quantum processor via the cloud, and it sheds light on how to map scientific computing applicationsonto nascent quantum devices.