{
  "annotation_id": "35c45b3b-65cb-4f59-9451-9b4a92024a2b",
  "date_created": "2026-03-02T18:02:06.390000Z",
  "date_modified": "2026-03-02T18:02:06.390000Z",
  "file_hash": "0159663cbfbb46568bec02341dc5c7d9e055aeb2ed373830cfbf4768f1f24a1e",
  "private": false,
  "record": {
    "abstract": "Various phase shifters and absorbers can be put into the arms of a double\nloop neutron interferometer. The mean intensity levels of the forward and\ndiffracted beams behind an empty four plate interferometer of this type have\nbeen calculated. It is shown that the intensities in the forward and diffracted\ndirection can be made equal using certain absorbers. In this case the\ninterferometer can be regarded as a 50/50 beam splitter. Furthermore the\nvisibilities of single and double loop interferometers are compared to each\nother by varying the transmission in the first loop using different absorbers.\nIt can be shown that the visibility becomes exactly 1 using a phase shifter in\nthe second loop. In this case the phase shifter in the second loop must be\nstrongly correlated to the transmission coefficient of the absorber in the\nfirst loop. Using such a device homodyne-like measurements of very weak signals\nshould become possible.",
    "arxiv_id": "quant-ph/0405091",
    "authors": [
      "M. Suda",
      "H. Rauch",
      "M. Peev"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1464-4266/6/7/012",
    "title": "New intensity and visibility aspects of a double loop neutron   interferometer",
    "url": "https://arxiv.org/abs/quant-ph/0405091"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e0118943-e37c-4f96-b1b0-521caedc602f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}