{
  "annotation_id": "76efa492-56d6-4fd0-b0a6-ced539aeb2f8",
  "date_created": "2026-03-02T18:01:49.024000Z",
  "date_modified": "2026-03-02T18:01:49.024000Z",
  "file_hash": "71f2bb02d7c9a0b355bbebd0afa941091ee3929c7ce26be7243912c20449dfa7",
  "private": false,
  "record": {
    "abstract": "We have made a single-photon detector that relies on photoconductive gain in\na narrow electron channel in an AlGaAs/GaAs 2-dimensional electron gas. Given\nthat the electron channel is 1-dimensional, the photo-induced conductance has\nplateaus at multiples of the quantum conductance 2e$^{2}$/h. Super-imposed on\nthese broad conductance plateaus are many sharp, small, conductance steps\nassociated with single-photon absorption events that produce individual\nphoto-carriers. This type of photoconductive detector could measure a single\nphoton, while safely storing and protecting the spin degree of freedom of its\nphoto-carrier. This function is valuable for a quantum repeater that would\nallow very long distance teleportation of quantum information.",
    "arxiv_id": "quant-ph/0112125",
    "authors": [
      "Hideo Kosaka",
      "Deepak S. Rao",
      "Hans D. Robinson",
      "Prabhakar Bandaru",
      "Toshitsugu Sakamoto",
      "Eli Yablonovitch"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevB.65.201307",
    "journal_ref": "Phys. Rev. B 65, R201307 (2002)",
    "title": "Photoconductance Quantization in a Single-Photon Detector",
    "url": "https://arxiv.org/abs/quant-ph/0112125"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f3f719e1-0dd8-4170-871f-4141a054a6ab",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}