{
  "annotation_id": "7e327705-cc41-4c04-b4ee-00024d087cb0",
  "date_created": "2026-03-02T18:01:41.780000Z",
  "date_modified": "2026-03-02T18:01:41.780000Z",
  "file_hash": "e93e808ed32c3a5b660dd5a714595abbf3cf79dcd5ed81b913437344afe5a5ef",
  "private": false,
  "record": {
    "abstract": "We consider a photonic crystal (PC) doped with four-level atoms whose\nintermediate transition is coupled near-resonantly with a photonic band-gap\nedge. We show that two photons, each coupled to a different atomic transition\nin such atoms, can manifest strong phase or amplitude correlations: One photon\ncan induce a large phase shift on the other photon or trigger its absorption\nand thus operate as an ultrasensitive nonlinear photon-switch. These features\nallow the creation of entangled two-photon states and have unique advantages\nover previously considered media: (i) no control lasers are needed; (ii) the\nsystem parameters can be chosen to cause full two-photon entanglement via\nabsorption; (iii) a number of PCs can be combined in a network.",
    "arxiv_id": "quant-ph/0010106",
    "authors": [
      "David Petrosyan",
      "Gershon Kurizki"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.64.023810",
    "title": "Photon-photon correlations and entanglement in doped photonic crystals",
    "url": "https://arxiv.org/abs/quant-ph/0010106"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "41ae9de6-fc38-4d19-96f4-b2738a5f54fc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}