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Andrew J. Landahl

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Preprint Oct 2026

Below-threshold execution of fault-tolerant ripple-carry addition on a trapped-ion quantum computer

We deploy a universal fault-tolerant quantum computing (FTQC) architecture based on error-detecting $[\![8,3,2]\!]$ and $[\![4,2,2]\!]$ codes on Quantinuum's Helios-1 trapped-ion quantum computer. We compile and execute ripple-carry adder (RCA) circuits for classical inputs up to five bits on this architecture. Uncompu...

Jacob S. Nelson, Andrew J. Landahl, A. Baczewski · 1 citation

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