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This benchmark demonstrates a critical trade-off in trapped-ion systems, where direct analog rotations currently outperform fault-tolerant code-switching for T-gates under present noise levels. The results provide essential data on logical qubit scalability and error-correction overheads as researchers push toward the 12-qubit threshold using Steane codes. These findings are vital for understanding practical pathways to achieving quantum advantage in physical algorithms like QFT before full fault tolerance is realized.

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Mitsui & Co. and Mitsubishi Electric Benchmark Approximate and Logical QFT on Quantinuum Helios

Quantum Computing ReportAugust 14, 20262 min read

Japanese industrial conglomerates Mitsui & Co. and Mitsubishi Electric have published joint experimental benchmarks evaluating the Quantum Fourier Transform (QFT) on Quantinuum’s 98-qubit Helios trapped-ion quantum computer. Detailed in a co-authored white paper ("Experimental Evaluation of the Quantum Fourier Transform on a Trapped-Ion Quantum Computer"), the team executed both physical-qubit approximate QFT and Steane-encoded logical [...] The post Mitsui & Co. and Mitsubishi Electric Benchmark Approximate and Logical QFT on Quantinuum Helios appeared first on Quantum Computing Report.

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