{
  "annotation_id": "3980c3e0-6a54-4a9e-9462-98951f138f21",
  "date_created": "2026-03-02T18:00:53.464000Z",
  "date_modified": "2026-03-02T18:00:53.464000Z",
  "file_hash": "cdde5894a428b0839a007007f3dc942f0532fee023ac1f3ea7e6019a44925e55",
  "private": false,
  "record": {
    "abstract": "The pump process of the ratchet model inspired by the $F_o$ rotatory motor of\nATP synthase is investigated. In this model there are two kinds of\ncharacteristic time. One is dynamical, the relaxation time of the system.\nOthers are chemical, the chemical reaction rates at which a proton binds to or\ndissociates from the motor protein. The inequalities between them affect the\nbehavior of the physical quantities, such as the rotation velocity and the\nproton pumping rates across the membrane. The energy transduction efficiency is\ncalculated and the condition under which the efficiency can become higher is\ndiscussed. The proton pumping rate and the efficiency have a peak where a\ncertain set of inequalities between the chemical reaction rates and the\nreciprocal of the relaxation time holds. The efficiency also has a peak for a\ncertain value of the load. The best efficiency condition for the pump process\nis consistent with that for the motor process.",
    "arxiv_id": "physics/0411061",
    "authors": [
      "Hiroshi Miki",
      "Masatoshi Sato",
      "Mahito Kohmoto"
    ],
    "categories": [
      "physics.bio-ph",
      "cond-mat.stat-mech",
      "q-bio.QM"
    ],
    "title": "Pump process of the rotatory molecular motor and its energy efficiency",
    "url": "https://arxiv.org/abs/physics/0411061"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f716ce20-704e-4ed6-ae01-3655f97f370e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}