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Quantum error correction demo shows big reductions in errors as qubits grow

Researchers demonstrated a quantum error correction system that reduced errors significantly as the number of physical qubits increased.

Quantum error correction goes well beyond breakeven
File photo Quantum error correction goes well beyond breakeven Photo: Ars Technica

Error rates drop with scale

A recent demonstration showed that adding more physical qubits to a logical qubit lowered the overall error rate. The team observed substantial improvements in stability when the system expanded beyond its initial configuration. This growth indicates that scaling up the hardware directly helps suppress faults within the quantum processor.

System moves past breakeven

The experiment confirmed that the device has crossed the threshold where error correction becomes more effective than the errors it tries to fix. Independent analysis of the data supports the claim that the system now operates beyond this critical point. Such progress suggests future quantum computers can maintain accuracy while becoming larger and more complex.

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