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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 breakthrough have Quandela and C2N achieved in single-photon sources?

Quandela and C2N demonstrated solid-state single-photon sources with 88% indistinguishability without spectral filtering, removing a key bottleneck for scalable photonic qubits.

Why is the 88% indistinguishability result significant for photonic quantum computing?

Eliminating the need for spectral filtering addresses a major technical hurdle, enabling more efficient generation of photonic qubits and supporting scalable quantum systems.

What leadership updates is Quandela implementing to support scale-up?

Quandela has strengthened its leadership team, including the appointment of Cyril Dujardin as Chief Operating Officer, to prepare for industrial-scale operations.

What DARPA recognition has Quandela received?

Quandela was selected for Stage A of the DARPA Quantum Benchmarking Initiative, validating its hybrid photonic-spin architecture.

How is Quandela connecting its quantum processor to classical AI hardware?

The company has experimentally validated a low-latency FPGA controller that links its photonic QPU directly to an NVIDIA GPU host for integrated operation.

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. New: Quandela selected for DARPA Quantum Benchmarking Initiative Stage A and also integrates QPU with NVIDIA GPU via NVQLink, signaling technical maturity and HPC-quantum convergence. Validates European quantum photonics momentum.

Sources (2)
Updated Aug 18, 2026
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