{
  "annotation_id": "1cc4e659-af13-4d9a-bf31-93724a3c65e0",
  "date_created": "2026-03-02T18:01:42.360000Z",
  "date_modified": "2026-03-02T18:01:42.360000Z",
  "file_hash": "b30ac375bfe6311fb6f63cfcf07a42d0fe97b84be3cd618881e0cf90c033196b",
  "private": false,
  "record": {
    "abstract": "We propose a novel scheme for nondistortion quantum interrogation (NQI),\ndefined as an interaction-free measurement which preserves the internal state\nof the object being detected. In our scheme, two EPR entangled photons are used\nas the probe and polarization sensitive measurements are performed at the four\nports of the Mach-Zehnder interferometer. In comparison with the previous\nsingle photon scheme, it is shown that the two photon approach has a higher\nprobability of initial state preserving interrogation of an atom prepared in a\nquantum superposition. In the case that the presence of the atom is not\nsuccessfully detected, the experiment can be repeated since the initial state\nof the atom is unperturbed.",
    "arxiv_id": "quant-ph/0103097",
    "authors": [
      "Xingxiang Zhou",
      "Zheng-Wei Zhou",
      "Marc J. Feldman",
      "Guang-Can Guo"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.64.044103",
    "title": "Nondistortion Quantum Interrogation using EPR entangled Photons",
    "url": "https://arxiv.org/abs/quant-ph/0103097"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "09802aa7-924a-417a-9f61-3b73991d0499",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}