{
  "$schema": "https://themachinepress.com/schemas/story-v1.schema.json",
  "schema_version": "1.0.0",
  "document_type": "machine_press_story",
  "story": {
    "story_id": "mp-2026-07-28-005",
    "source_story_id": "tmp-story-mof-photoinduced-hidden-state",
    "edition_id": "mp-2026-07-28-morning-0019",
    "edition_url": "https://themachinepress.com/edition/2026-07-28",
    "position": 5,
    "story_type": "dispatch",
    "section": "research",
    "editorial_classification": "editorial",
    "headline": "Thirty Femtoseconds Opened a Hidden State",
    "slug": "thirty-femtoseconds-opened-a-hidden-state",
    "dek": "Six-femtosecond laser pulses exposed a transient bond-order wave that precedes a light-induced state in a metal-organic framework.",
    "summary": "Six-femtosecond laser pulses exposed a transient bond-order wave that precedes a light-induced state in a metal-organic framework.",
    "body_text": "Researchers at Science Tokyo, Tohoku University and Nagoya Institute of Technology tracked reflectance immediately after a metal-organic framework absorbed light. Experiment and theory indicate that a short-lived bond-order wave, with alternating stronger and weaker electronic bonding, forms before atomic shifts establish a potentially polar hidden state within about 30 femtoseconds. The July 22 Physical Review Letters result reveals an intermediate step and a way to study light-controlled materials, not a ready high-speed device.",
    "why_it_matters": "Six-femtosecond laser pulses exposed a transient bond-order wave that precedes a light-induced state in a metal-organic framework.",
    "limitations": [
      "The July 22 Physical Review Letters result reveals an intermediate step and a way to study light-controlled materials, not a ready high-speed device."
    ],
    "importance": 8,
    "canonical_url": "https://themachinepress.com/story/mp-2026-07-28-005/thirty-femtoseconds-opened-a-hidden-state",
    "json_url": "https://themachinepress.com/story/mp-2026-07-28-005.json",
    "first_published_at": "2026-07-28T09:00:00.000-04:00",
    "modified_at": "2026-07-28T09:00:00.000-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-07-28-005-001",
        "text": "Six-femtosecond laser pulses exposed a transient bond-order wave that precedes a light-induced state in a metal-organic framework.",
        "source_ids": [
          "source-2026-07-28-005"
        ],
        "qualification": "The July 22 Physical Review Letters result reveals an intermediate step and a way to study light-controlled materials, not a ready high-speed device."
      }
    ],
    "source_ids": [
      "source-2026-07-28-005"
    ],
    "tags": [
      "metal-organic framework",
      "ultrafast spectroscopy",
      "hidden state",
      "optoelectronics"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-07-28-005",
      "title": "Institute of Science Tokyo via EurekAlert: Ultrafast photoinduced hidden state",
      "publisher": "Institute of Science Tokyo via EurekAlert",
      "url": "https://e3.eurekalert.org/news-releases/1137649",
      "canonical_url": "https://e3.eurekalert.org/news-releases/1137649",
      "source_type": "official_announcement",
      "is_primary_source": true,
      "published_at": null,
      "accessed_at": "2026-07-28T08:31:00.000-04:00",
      "supports_claim_ids": [
        "claim-mp-2026-07-28-005-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "Thirty Femtoseconds Opened a Hidden State",
    "publisher": "The Machine Press",
    "published_at": "2026-07-28T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-07-28-005/thirty-femtoseconds-opened-a-hidden-state"
  }
}