The brief
- Raised $60M in January 2026 to accelerate deployment of Bell-1, a silicon quantum server for standard data centers.
- Bell-1 is a 6-qubit rack-mounted system at 0.3 K with 99.40% single-qubit fidelity, shipping to customers.
- Uses simpler pulse-tube coolers instead of expensive dilution refrigerators, reducing infrastructure complexity for quantum access.
Technical approach
Silicon Spin Qubits
Electron spins in silicon quantum dots
Electron spins confined in silicon quantum dots serve as qubits, using proven semiconductor manufacturing for scalability and cost-effectiveness.
Pulse-Tube Cooling
0.3 K operation without dilution refrigerators
Self-contained pulse-tube cryocoolers eliminate expensive helium dilution refrigerators, reducing operational complexity and costs.
Data Center Integration
Rack-mountable, plug-and-play system
Bell-1 fits standard server racks, uses 1600W power like a high-end GPU, and works with standard data center infrastructure.
