{
  "annotation_id": "1e8ed67b-969f-4570-83a5-1fd019d9e64b",
  "date_created": "2026-03-02T18:02:33.711000Z",
  "date_modified": "2026-03-02T18:02:33.711000Z",
  "file_hash": "6addeca8310bd1d2fe01f188a21fcaee1f9e118818adfaf6586388f968117275",
  "private": false,
  "record": {
    "abstract": "We show that the generation of entanglement of two heavily macroscopic\nmirrors with masses of up to several kilograms are feasible with state of the\nart techniques of high-precision laser interferometry. The basis of such a\ndemonstration would be a Michelson interferometer with suspended mirrors and\nsimultaneous homodyne detections at both interferometer output ports. We\npresent the connection between the generation of entanglement and the Standard\nQuantum Limit (SQL) for a free mass. The SQL is a well-known reference limit in\noperating interferometers for gravitational-wave detection and provides a\nmeasure of when macroscopic entanglement can be observed in the presence of\nrealistic decoherence processes.",
    "arxiv_id": "quant-ph/0702258",
    "authors": [
      "Helge Mueller-Ebhardt",
      "Henning Rehbein",
      "Roman Schnabel",
      "Karsten Danzmann",
      "Yanbei Chen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.100.013601",
    "journal_ref": "Phys. Rev. Lett. 100, 013601 (2008)",
    "title": "Entanglement of macroscopic test masses and the Standard Quantum Limit   in laser interferometry",
    "url": "https://arxiv.org/abs/quant-ph/0702258"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4545c7b6-fe69-4995-843b-d5bc1e143882",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}