Diamond Integrated Quantum Nanophotonics: Spins, Photons and Phonons

Integrated photonic devices in diamond have tremendous potential for many quantum applications, including long-distance communication, information processing, and sensing. These benefit from diamond's combination of exceptional thermal, optical, mechanical properties. Its wide electronic bandgap makes an ideal host a variety optical active spin qubits that are key building blocks technologies. In landmark experiments, enabled demonstrations remote entanglement, memory-enhanced multi-qubit registers with fault-tolerant error correction, leading to the realization multinode networks. advances put at forefront solid-state material platforms processing. Recent developments nanofabrication techniques provide promising route further scaling these experiments towards real-life this paper, we focus on recent progress creating integrated devices, particular emphasis spin-photon interfaces, cavity optomechanical spin-phonon transduction. Finally, discuss prospects remaining challenges use scalable