{
  "annotation_id": "524df98d-987d-4139-9fb3-dd7b41b8b7d9",
  "date_created": "2026-03-02T18:02:26.464000Z",
  "date_modified": "2026-03-02T18:02:26.464000Z",
  "file_hash": "023430e34874f05e9a67d812c9464e597c59e7c3faf17b3468fdbd6cdba157b5",
  "private": false,
  "record": {
    "abstract": "Electromagnetically induced transparency allows for light transmission\nthrough dense atomic media by means of quantum interference. Media exhibiting\nelectromagnetically induced transparency have very interesting properties, such\nas extremely slow group velocities. Associated with the slow light propagation\nare quasiparticles, the so-called dark polaritons, which are mixtures of a\nphotonic and an atomic contribution. We here demonstrate that these excitations\nbehave as particles with a nonzero magnetic moment, which is in clear contrast\nto the properties of a free photon. It is found that light passing through a\nrubidium gas cell under the conditions of electromagnetically induced\ntransparency is deflected by a small magnetic field gradient. The deflection\nangle is proportional to the optical propagation time through the cell. The\nobserved beam deflection can be understood by assuming that dark state\npolaritons have an effective magnetic moment. Our experiment can be described\nin terms of a Stern-Gerlach experiment for the polaritons.",
    "arxiv_id": "quant-ph/0603218",
    "authors": [
      "Leon Karpa",
      "Martin Weitz"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.soft",
      "physics.atom-ph"
    ],
    "doi": "10.1038/nphys284",
    "title": "A Stern-Gerlach experiment for slow light",
    "url": "https://arxiv.org/abs/quant-ph/0603218"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ed0d8a2f-300a-4916-b7d5-dc8c353446e9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}