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Alice & Bob has validated a critical pathway for fault-tolerant quantum computing by demonstrating GPU-accelerated decoding of its LDPC-cat architecture via NVIDIA NVQLink. This proof-of-concept establishes microsecond-scale communication between classical supercomputers and quantum control systems, enabling parallel processing of syndrome streams to achieve low logical error rates. The integration of cat qubits with 2D LDPC codes represents a significant architectural step toward scaling qubit counts while maintaining high fidelity in hybrid quantum-classical workflows.
Alice & Bob Demonstrates GPU Decoding for LDPC-Cat Codes via NVIDIA NVQLink

Alice & Bob has demonstrated the GPU decoding of their LDPC-cat quantum error correction architecture using NVIDIA GPUs and the NVQLink system. This allows for microsecond-scale communication between quantum control systems and classical GPU supercomputers, enabling real-time error correction. The LDPC-cat architecture utilizes cat qubits and 2D LDPC codes to achieve low logical error rates for quantum computing. The post Alice & Bob Demonstrates GPU Decoding for LDPC-Cat Codes via NVIDIA NVQLink appeared first on Quantum Computing Report.
Fault-tolerant quantum computing developer Alice & Bob has presented proof-of-concept results demonstrating the decoding of its LDPC-cat quantum error correction architecture on NVIDIA GPUs using the low-latency NVQLink system architecture. The demonstration…
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