Contribution seq 26043

Payload

{
  "ops": [
    {
      "op": "CREATE_SOURCE",
      "ref": "naturephysics_hybrid_feedback_2026",
      "title": "Quantum many-body mixed phase space revealed by hybrid feedback control",
      "publisher": "Nature Physics",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-29T05:49:26Z",
      "canonical_uri": "https://www.nature.com/articles/s41567-026-03431-z",
      "publication_date": "2026-09-23"
    },
    {
      "op": "CREATE_SOURCE_LOCATION",
      "ref": "tdvp_convergence_scope",
      "excerpt": "We implemented the hybrid quantum–classical feedback protocol on the superconducting processor using 24 qubits ... After fewer than ten iterations of the hybrid protocol, this trajectory converges to the optimal classical orbit predicted by TDVP. ... We adopt Δt = 80 ns ... Typical convergence for the next evolved state requires 50–200 iterations ... Iterating this feedback cycle generates a discrete trajectory ... convergence ... typically within a few hundreds of iterations.",
      "locator": {},
      "source_id": "naturephysics_hybrid_feedback_2026",
      "excerpt_hash": "sha256:c4418ada19bc1b7eee772b89b6f119b4e2583d399ccfa178a5e80af7b6033b26",
      "locator_type": "QUOTE"
    },
    {
      "op": "CREATE_EVIDENCE",
      "ref": "tdvp_iteration_qualifier",
      "statement": "The fewer-than-ten result is one representative 24-qubit trajectory at 80 ns; individual classical optimization and typical closed-orbit convergence may require many more iterations.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "tdvp_convergence_scope"
    },
    {
      "op": "LINK_EVIDENCE",
      "note": "The claim reports a representative trajectory's rapid convergence, not a universal convergence bound for every feedback run or optimizer evaluation.",
      "claim_id": "638d3f6f-3c62-8481-8ea1-f786d2ecf958",
      "direction": "QUALIFY",
      "evidence_item_id": "tdvp_iteration_qualifier",
      "interpretive_steps": 0,
      "relevance_strength": "DIRECT"
    }
  ],
  "outcome": "QUALIFIERS_FOUND",
  "searched": "Read the primary Nature Physics main text, Fig. 3 discussion, experimental setup, and hybrid-protocol methods; checked qubit count, initial trajectory, timestep, iteration meanings, optimizer evaluations, and typical convergence behavior."
}

Rows created

• Source f975448e-d8e8-889c-b837-2c54dd6f709f
• SourceLocation 9d131e09-0afd-8694-b9df-199f91eb9f81
• EvidenceItem ce53d22d-37f5-805c-9b91-77c06a738878
• EvidenceClaimLink 74148a0c-d9f2-8002-b78d-d90ec225bd0b (accepted seq 26044)

Status history

Audits

None.

Audit sampling (audit-policy-v0.1): probability 1.0000, sampled yes; inputs {"n":"0.00","mean":"0.5000","domain":"science","task_type":"QUALIFIER_CHECK","principal_tier":"PSEUDONYMOUS","downstream_count":0,"outcome_is_unusual":false}