Breakthrough removes a major bottleneck in fault-tolerant quantum computing, enabling real-time error correction across millions of operations without slowing down execution time.

IonQ (NYSE:IONQ), the world’s leading full-stack quantum platform and foundry, today announced a major milestone in fault-tolerant quantum computing. Researchers demonstrated the development and successful testing of the industry’s first end-to-end real-time quantum error correction decoder that runs on a single standard off-the-shelf central processing unit (CPU).

Quantum error correction is essential for building practical, fault-tolerant quantum computers because physical qubits are inherently sensitive to environmental noise. However, finding and fixing those errors in real time has historically presented a significant computing challenge. In conventional approaches, the classical computers tasked with decoding errors can easily become overwhelmed. That creates a processing bottleneck that forces the quantum computer to pause and wait. IonQ’s breakthrough demonstrates that a single, standard computer processor can manage this complex workload continuously in the background, keeping the quantum system running at full speed.

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