{
  "annotation_id": "015aa938-8ea9-4cc8-b260-7c48cf269ed5",
  "date_created": "2026-03-02T18:01:52.936000Z",
  "date_modified": "2026-03-02T18:01:52.936000Z",
  "file_hash": "a5dcd99d0a6096247486a6072fc54c4f8de8338c20508f5ce80b32f11119ae79",
  "private": false,
  "record": {
    "abstract": "Single-photon detection and photon counting play a central role in a large\nnumber of quantum communication and computation protocols. While the efficiency\nof state-of-the-art photo-detectors is well below the desired limits, quantum\nstate measurements in trapped ions can be carried out with efficiencies\napproaching 100%. Here, we propose a method that can in principle achieve ideal\nphoton counting, by combining the techniques of photonic quantum memory and\nion-trap fluorescence detection: after mapping the quantum state of a\npropagating light pulse onto metastable collective excitations of a trapped\ncold atomic gas, it is possible to monitor the resonance fluorescence induced\nby an additional laser field that only couples to the metastable excited state.\nEven with a photon collection/detection efficiency as low as 10%, it is\npossible to achieve photon counting with efficiency approaching 100%.",
    "arxiv_id": "quant-ph/0205196",
    "authors": [
      "A. Imamoglu"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.89.163602",
    "title": "High efficiency photon counting using stopped light",
    "url": "https://arxiv.org/abs/quant-ph/0205196"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fddd15d3-03c8-4397-a930-19d96259d2cb",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}