Tag: Dilution Refrigerators

Alice & Bob has made its Helium platform available to third-party organizations, marking the first multi cat-qubit system offered externally for quantum error correction research and experimentation. The compact 18-qubit system integrates noise-biased cat qubits with degree-2 connectivity and delivers bit-flip times exceeding one hour along with 94.2% Z-gate fidelity in 26.5 nanoseconds. Backed by €130 million in total funding and a new $50 million Paris laboratory, the company is advancing a clear roadmap toward a 100-logical-qubit Graphene quantum computer by 2030. The platform’s design aims to reduce physical qubit overhead for fault-tolerant quantum computing by up to 200 times compared with conventional superconducting approaches. Researchers can now access this hardware-efficient architecture through a unified control interface for collaborative experiments.