{
  "annotation_id": "47e8587b-4c0b-4b9e-87d6-dbbb81a86122",
  "date_created": "2026-03-02T18:02:23.818000Z",
  "date_modified": "2026-03-02T18:02:23.818000Z",
  "file_hash": "cc287ddb4107e9bc53ca5c688e5b12b9e68d9034a8097ed648c7c8b96c08a477",
  "private": false,
  "record": {
    "abstract": "We demonstrate the on-demand emission of polarisation-entangled photon pairs\nfrom the biexciton cascade of a single InAs quantum dot embedded in a GaAs/AlAs\nplanar microcavity. Improvements in the sample design blue shifts the wetting\nlayer to reduce the contribution of background light in the measurements.\nResults presented show that \u003e70% of the detected photon pairs are entangled.\nThe high fidelity of the (|HxxHx\u003e+|VxxVx\u003e)/2^0.5 state that we determine is\nsufficient to satisfy numerous tests for entanglement. The improved quality of\nentanglement represents a significant step towards the realisation of a\npractical quantum dot source compatible with applications in quantum\ninformation.",
    "arxiv_id": "quant-ph/0601187",
    "authors": [
      "Robert J. Young",
      "R. Mark Stevenson",
      "Paola Atkinson",
      "Ken Cooper",
      "David A. Ritchie",
      "Andrew J. Shields"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.other"
    ],
    "doi": "10.1088/1367-2630/8/2/029",
    "journal_ref": "New J. Phys. 8, 29 (2006)",
    "title": "Improved fidelity of triggered entangled photons from single quantum   dots",
    "url": "https://arxiv.org/abs/quant-ph/0601187"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "33e411e8-9575-4191-b13d-5ddb1a6f0373",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}