{
  "annotation_id": "f054649c-b5f3-4734-bb84-46027fb103b9",
  "date_created": "2026-03-02T18:01:24.595000Z",
  "date_modified": "2026-03-02T18:01:24.595000Z",
  "file_hash": "af0f4830d9c40976b13f73fe8e7588d1847f64d63f87a18583032a568d889c82",
  "private": false,
  "record": {
    "abstract": "We consider an isolated gaseous system, divided in two parts by an adiabatic\nmovable frictionless internal wall undergoing Brownian motion. We show how this\nkind of motion can lead to a substantial decrease of the system entropy. This\nsurprising result does not violate Boltzmann\u0027s H-theorem since the molecular\nchaos assumption underlying H-theorem is not fulfilled by our system.",
    "arxiv_id": "physics/9907011",
    "authors": [
      "B. Crosignani",
      "P. Di Porto"
    ],
    "categories": [
      "physics.class-ph"
    ],
    "title": "Entropy Decrease in Isolated Systems with an Internal Wall undergoing   Brownian Motion",
    "url": "https://arxiv.org/abs/physics/9907011"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "039fde8e-24a7-48e3-bfcc-27921b0c753f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}