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Researchers have demonstrated stable two-photon interference in commercially produced silicon carbide devices, achieving 82% visibility with recalibration intervals extending to 8.4 hours. This breakthrough significantly reduces experimental overhead and paves the way for scalable distributed quantum networks by leveraging industrial-grade materials rather than custom fabrication. The ability to maintain spectral stability over extended periods is a critical step toward practical, high-rate quantum communication infrastructure.
Researchers Achieve 82% Visibility in Silicon Carbide Network Nodes
Two-photon interference now maintains 82% visibility while needing p-i-n diode bias readjustment only every 8. 4 hours. This drastically reduces experimental overhead compared to previous methods demanding frequent recalibration for spectral stability.
Until now, distributed quantum networks have required frequent recalibration of network nodes to maintain stable operation and high visibility during photon interference, limiting network rates and increasing error correction overheads. Two-photon interference using silicon vacancy centres within industrial silicon carbide devices has been demonstrated for the first time. High-performance quantum components are operating reliably over an extended duration, key for building larger and more complex networks. The team achieved…
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