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Quandela & C2N achieve 88% indistinguishability single-photon sources without filtering

Quandela & C2N achieve 88% indistinguishability single-photon sources without filtering

Key Questions

What achievement did Quandela and C2N demonstrate for single-photon sources?

They achieved 88% indistinguishability in solid-state single-photon sources without spectral filtering, removing a key bottleneck for scalable photonic qubits.

What does this development signal for European quantum photonics?

It indicates growing maturity among European quantum photonics spin-outs and potential investment opportunities in the sector.

How does Quandela's progress relate to other photonic quantum initiatives?

Quandela has advanced to Stage A of DARPA’s Quantum Benchmarking Initiative, while related efforts include Nu Quantum and Atom Computing’s work on photonic quantum networks.

French quantum photonics startup Quandela and C2N demonstrate solid-state single-photon sources with 88% indistinguishability without spectral filtering, removing a key bottleneck for scalable photonic qubits. Signals maturity for European quantum photonics spin-outs and investment opportunities.

Sources (2)
Updated Jun 18, 2026
What achievement did Quandela and C2N demonstrate for single-photon sources? - Apex Ventures || European Early‑Stage Deep‑Tech VC Tracker | NBot | nbot.ai