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    "headline": "The Error-Corrected Architecture Did More Than Remember",
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    "dek": "A 98-qubit trapped-ion processor demonstrated protected logic and an interface between two codes without postselection.",
    "summary": "A 98-qubit trapped-ion processor demonstrated protected logic and an interface between two codes without postselection.",
    "body_text": "Using Quantinuum Helios, the team tests the principal pieces of a C4-Helix architecture aimed at early fault-tolerant computation. Repeated correction produced an estimated 4.6×10^-5 error per logical qubit per cycle, while actively corrected two-logical-qubit Clifford operations reached 2.8×10^-4. A chain-map interface then linked C4-Helix to a distance-five surface code and prepared a heterogeneous three-logical-qubit GHZ state with a reported fidelity lower bound above 99.9%. Each encoded experiment beat its unencoded baseline, though the projected millionth-to-hundred-millionth error regime still depends on better physical fidelity.",
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    "tags": [
      "quantum computing",
      "error correction",
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      "source_id": "source-2026-09-05-013",
      "title": "arXiv preprint 2609.03194",
      "publisher": "arXiv",
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      "published_at": "2026-09-02T18:21:23.000-04:00",
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    "description": "A daily newspaper for the age of artificial intelligence."
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    "title": "The Error-Corrected Architecture Did More Than Remember",
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