Robust control of individual nuclear spins in diamond

TL;DR

This paper demonstrates robust methods for initializing, manipulating, and reading out individual nuclear spins in diamond using the nitrogen-vacancy center's electronic spin, advancing quantum information processing capabilities.

Contribution

It introduces a technique leveraging hyperfine coupling via the NV center to control multiple nuclear spins in diamond, enabling quantum information applications.

Findings

Successful optical readout of nuclear spins

High-fidelity single-qubit control achieved

Enhanced nuclear spin initialization and detection

Abstract

Isolated nuclear spins offer a promising building block for quantum information processing systems, but their weak interactions often impede preparation, control, and detection. Hyperfine coupling to a proximal electronic spin can enhance each of these processes. Using the electronic spin of the nitrogen-vacancy center as an intermediary, we demonstrate robust initialization, single-qubit manipulation, and direct optical readout of 13C, 15N, and 14N nuclear spins in diamond. These results pave the way for nitrogen nuclear spin based quantum information architectures in diamond.