Sandia National Laboratories and Quantinuum Validate 98-Qubit Helios Trapped-Ion Framework - Quantum Computing Report

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Sandia National Laboratories and Quantinuum Validate 98-Qubit Helios Trapped-Ion Framework

Illustration of the Helios design and conception of operations.

Sandia National Laboratories and Quantinuum have published peer-reviewed performance data in the journal Nature detailing Helios, a 98-qubit commercial trapped-ion quantum computer. Operating under a long-standing Cooperative Research and Development Agreement (CRADA), which was renewed in May 2026, researchers from Sandia evaluated and verified the system’s operational parameters. The benchmarking routines confirmed single-qubit gate fidelities of 99.9975% (an average infidelity of 2.5×10−5) and two-qubit gate fidelities of 99.921% (an average infidelity of 7.9×10−4), alongside a State Preparation and Measurement (SPAM) fidelity of 99.967%. These metrics establish baseline error rates that allow the system to execute operations outside the boundaries of classical simulation.