{
  "$schema": "https://themachinepress.com/schemas/story-v1.schema.json",
  "schema_version": "1.0.0",
  "document_type": "machine_press_story",
  "story": {
    "story_id": "mp-2026-09-08-005",
    "source_story_id": "tmp-story-nanodiamond-microkelvin-thermometry",
    "edition_id": "mp-2026-09-08-morning-0061",
    "edition_url": "https://themachinepress.com/edition/2026-09-08",
    "position": 5,
    "story_type": "dispatch",
    "section": "research",
    "editorial_classification": "editorial",
    "headline": "A Nanodiamond Read Heat to 682 Microkelvin",
    "slug": "a-nanodiamond-read-heat-to-682-microkelvin",
    "dek": "Dual nitrogen-vacancy centers and a dedicated sensing chip improved nanoscale temperature sensitivity by an order of magnitude over prior reports.",
    "summary": "Dual nitrogen-vacancy centers and a dedicated sensing chip improved nanoscale temperature sensitivity by an order of magnitude over prior reports.",
    "body_text": "The team used isotopically purified nanodiamonds containing two nitrogen-vacancy centers with a purpose-built quantum sensing chip. It reports robust temperature measurements with 682-microkelvin error, experimental sensitivity below 50 millikelvin per square-root hertz and a shot-noise-limited value of 9.6 millikelvin per square-root hertz. The setup also measured heating from its own excitation laser and observed transient heat from mixing dimethyl sulfoxide with water at nanometre scale. The work demonstrates a sensing platform; proposed uses in living systems and catalyst assessment remain future applications.",
    "why_it_matters": "Dual nitrogen-vacancy centers and a dedicated sensing chip improved nanoscale temperature sensitivity by an order of magnitude over prior reports.",
    "limitations": [
      "The work demonstrates a sensing platform; proposed uses in living systems and catalyst assessment remain future applications."
    ],
    "importance": 8,
    "canonical_url": "https://themachinepress.com/story/mp-2026-09-08-005/a-nanodiamond-read-heat-to-682-microkelvin",
    "json_url": "https://themachinepress.com/story/mp-2026-09-08-005.json",
    "first_published_at": "2026-09-08T09:00:00.000-04:00",
    "modified_at": "2026-09-08T09:00:00.000-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-09-08-005-001",
        "text": "Dual nitrogen-vacancy centers and a dedicated sensing chip improved nanoscale temperature sensitivity by an order of magnitude over prior reports.",
        "source_ids": [
          "source-2026-09-08-005"
        ],
        "qualification": "The work demonstrates a sensing platform; proposed uses in living systems and catalyst assessment remain future applications."
      }
    ],
    "source_ids": [
      "source-2026-09-08-005"
    ],
    "tags": [
      "quantum sensing",
      "nanodiamond",
      "thermometry"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-09-08-005",
      "title": "arXiv preprint 2609.04907",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2609.04907",
      "canonical_url": "https://arxiv.org/abs/2609.04907",
      "source_type": "primary_research",
      "is_primary_source": true,
      "published_at": "2026-09-04T05:09:42.000-04:00",
      "accessed_at": "2026-09-08T08:20:00.000-04:00",
      "supports_claim_ids": [
        "claim-mp-2026-09-08-005-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "A Nanodiamond Read Heat to 682 Microkelvin",
    "publisher": "The Machine Press",
    "published_at": "2026-09-08T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-09-08-005/a-nanodiamond-read-heat-to-682-microkelvin"
  }
}