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Cloud Quantum Computing of an Atomic Nucleus.
E. Dumitrescu, A. McCaskey, G. Hagen, G. Hagen, G. Jansen, G. Jansen, T. Morris, T. Morris, Thomas Papenbrock, Thomas Papenbrock, R. Pooser, R. Pooser, D. Dean, P. Lougovski·January 11, 2018·DOI: 10.1103/PhysRevLett.120.210501
PhysicsMedicine
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Abstract
We report a quantum simulation of the deuteron binding energy on quantum processors accessed via cloud servers. We use a Hamiltonian from pionless effective field theory at leading order. We design a low-depth version of the unitary coupled-cluster ansatz, use the variational quantum eigensolver algorithm, and compute the binding energy to within a few percent. Our work is the first step towards scalable nuclear structure computations on a quantum processor via the cloud, and it sheds light on how to map scientific computing applications onto nascent quantum devices.