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QuTech Achieves Above-Unity Coherent Nanophotonic Coupling for Diamond SnV Color Centers
A research team at QuTech—a collaborative institute between the Delft University of Technology (TU Delft) and the Netherlands Organisation for Applied Scientific Research (TNO)—has demonstrated a highly efficient and coherent light-matter interface linking a diamond-based quantum emitter to photons trapped inside a nanoscopic optical cavity. Published in the journal Physical Review X (PRX) and supervised by principal investigator Prof. Ronald Hanson, the hardware milestone resolves a long-standing bottleneck in quantum information infrastructure: achieving reliable, low-noise handshakes between stationary solid-state matter qubits and flying photonic qubits. Beyond accelerating remote entanglement distribution across long-range quantum internet nodes, the scalable nanophotonic architecture provides a foundational blueprint for interconnecting localized qubit clusters within QuTech’s ongoing modular quantum computing collaboration with Fujitsu.
