Realization and Applications of Two-Node Quantum Networks

Silicon-vacancy (SiV) centers in diamond nanophotonic cavities are equipped with high-efficiency and high-fidelity spin-photon gates, as well as long-lived auxiliary memory qubits, which makes them a promising solid-state candidate for quantum network applications. We use a two-node quantum network of SiVs to generate remote entanglement, probing different entanglement generation protocols to increase entanglement rates. Having used this network to generate entanglement over a deployed metropolitan fiber, we explore quantum network applications enabled by the remote entanglement, including blind quantum computing and progress towards quantum memory-enhanced long-baseline interferometry.