{
  "annotation_id": "3a586bdc-421b-4bb4-baef-95c4beafdd0f",
  "date_created": "2026-03-02T18:00:59.934000Z",
  "date_modified": "2026-03-02T18:00:59.934000Z",
  "file_hash": "d1fdbf1ec7525ee1353366ebba5265fc4f4303a71ae0555ebdade00457c601ab",
  "private": false,
  "record": {
    "abstract": "This is another approach to realize Maxwell\u0027s \"demon\" hypothesis. Two Ag-O-Cs\nthermal electron ejectors, A and B, are settled in a vacuum tube. A non-uniform\nmagnetic field exerted on the tube provides a one-way channel for the thermal\nelectrons. Ejector A, losing electrons, charges positively, while ejector B,\ngetting electrons, charges negatively, resulting in an electric voltage. In\nflying from A to B, the speed of the electrons decreases, and part of their\nthermal kinetic energy converts into electric potential energy. Thus, the\ntemperature of the whole electron tube drops down slightly, and that can be\ncompensated by the heat attracted from the ambient air. The device can provide\na small but macroscopic power to an external load, violating Kelvin\u0027s statement\nof the second law.",
    "arxiv_id": "physics/0509111",
    "authors": [
      "Xinyong Fu",
      "Zitao Fu"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "title": "Another Way To Realize Maxwell\u0027s Demon",
    "url": "https://arxiv.org/abs/physics/0509111"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cc9898c2-b4e5-4e98-8755-d8ae213653aa",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}