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Alice & Bob has successfully demonstrated LDPC-cat code decoding on GPUs via NVIDIA's NVQLink, marking a significant architectural step toward scalable quantum error correction. This achievement addresses the critical bottleneck where classical compute must keep pace with qubit error rates, particularly for cat-qubit modalities. The current focus shifts to optimizing the data pipeline through NVQLink to achieve the low-latency throughput required for real-time fault tolerance.

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Alice & Bob tests quantum decoding with Quantum Machines

Quantum ZeitgeistOctober 13, 20263 min read

Alice & Bob achieved LDPC-cat code decoding on GPUs using NVIDIA NVQLink, and Quantum Machines’ OPX1000—a first for this architecture.

Alice & Bob reports the first implementation of LDPC-cat codes decoded on GPUs using NVIDIA’s NVQLink architecture, a key step toward scalable error correction for its cat-qubit quantum computers. Alice & Bob assessed the feasibility of GPU decoding for LDPC-cat codes using an NVQLink connection with Quantum Machines’ OPX1000 and Open Acceleration Stack, a modular framework that couples the controller…

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