The brief

Analyst view

• Belenos (12 qubits) cloud-accessible since May 2025 to 1,200+ researchers; 25% are commercial users.
• Photonic qubits with spin-mediated logic via quantum dots; Spin-Optical (SPOQC) hybrid architecture.
• Selected for DARPA QBI Stage A (June 2026); targets 40+ qubits by 2030.

Technical approach

As reported

Photonics

Photonic qubits with spatial connectivity

Linear-optical photons offer intrinsic spatial connectivity, reducing routing overhead for multi-qubit error correction.

Logic

Spin-mediated gates via quantum dots

Semiconductor quantum dots control photon states via electron spins, enabling deterministic nanosecond two-qubit gates.

Scale

Roadmap: 12 → 24 → 40+ qubits

Belenos (12, 2025) → Canopus (24, 2026) → 40+ (2030) integrated with HPC infrastructure.