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Quantinuum's demonstration of 99.9995% logical memory fidelity on its Helios processor marks a critical milestone in trapped-ion quantum computing by validating exponential error suppression through distance-7 triangular color codes. The integration of sub-millisecond neural network decoders alongside hardware-level leakage reduction further strengthens the architecture's path toward fault-tolerant universal systems like Apollo.
Quantinuum Demonstrates 99.9995% Logical Memory Fidelity on Helios Trapped-Ion Processor

Quantinuum has demonstrated a 99.9995% logical memory fidelity on its Helios trapped-ion quantum computer, achieving a logical error rate of 5 × 10-6 per syndrome-extraction round on a distance-7 code. This performance shows exponential error suppression with increasing code distance, with a suppression factor of 12. These results align with the performance targets for Quantinuum's future universal fault-tolerant quantum system, Apollo. The post Quantinuum Demonstrates 99.9995% Logical Memory Fidelity on Helios Trapped-Ion Processor appeared first on Quantum Computing Report.
Triangular color code distance scaling. In a technical release and research preprint, full-stack quantum computing provider Quantinuum (NASDAQ: QNT) reported quantum error correction (QEC) performance metrics on its commercial Helios trapped-ion quantum computer, measuring a logical memory fidelity of 99.9995%—equivalent…
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