Alice & Bob Demonstrates GPU Decoding for LDPC-Cat Codes via NVIDIA NVQLink
AI-summarised brief · reviewed before publication
Fault‑tolerant quantum‑computing firm Alice & Bob demonstrated that its LDPC‑cat error‑correction architecture can be decoded on NVIDIA GPUs via the NVQLink interface. The team transferred synthetic measurement data from Quantum Machines’ OPX1000 control hardware to GPUs using the Open Acceleration Stack, achieving microsecond‑scale round‑trip communication between quantum control systems and classical supercomputers. NVQLink offers high‑throughput, tight coupling for real‑time decoding, calibration, and hybrid workloads. The LDPC‑cat design, combining cat qubits with 2‑D LDPC codes, supports 100 logical qubits on a 758‑qubit chip with logical error rates below 10⁻⁸ per cycle.
💡 Why It Matters
- · The result shows that large‑scale, low‑latency quantum error correction can be offloaded to commodity GPUs, accelerating progress toward fault‑tolerant quantum processors.
