Detection and control of large systems of nuclear-spin qubits in diamond

Nuclear spins in diamond are promising for their use as qubits in quantum computers and quantum networks, and for simulating many-body physics phenomena. Recently, we demonstrated the 3D imaging of a system of 27-nuclear-spin qubits using a nitrogen vacancy (NV) center in diamond [1], and a universally connected 10-qubit register formed of 9 nuclear spins combined with the NV center electron spin [2].

Building on these recent results, I will present new methods that allow us to extend control over more nuclear spin qubits. By combining precise knowledge of the nuclear spin environment with dynamic nuclear polarization techniques and selective readout protocols, we can prepare and measure individual nuclear spin qubits within a large interacting cluster. As well as extending the number of qubits available for quantum information applications, these techniques open the door to the quantum simulation of complex many-body physics phenomena using nuclear spins in diamond.

[1] M. H. Abobeih et al. Nature (in press), preprint: arXiv:1905.02095 (2019)
[2] C. E. Bradley et al. Phys. Rev. X 9, 031045 (2019)