{
  "annotation_id": "f301ca39-705c-4aed-8623-e3950922f97c",
  "date_created": "2026-03-02T18:02:20.709000Z",
  "date_modified": "2026-03-02T18:02:20.709000Z",
  "file_hash": "085dd53f8f2d76a6e4a88733de37975a7c9cc819698d03609b76984c9ceb98e0",
  "private": false,
  "record": {
    "abstract": "In this paper a programmable quantum state discriminator is implemented by\nusing nuclear magnetic resonance. We use a two qubit spin-1/2 system, one for\nthe data qubit and one for the ancilla (programme) qubit. This device does the\nunambiguous (error free) discrimination of pair of states of the data qubit\nthat are symmetrically located about a fixed state. The device is used to\ndiscriminate both, linearly polarized states and elliptically polarized states.\nThe maximum probability of the successful discrimination is achieved by\nsuitably preparing the ancilla qubit. It is also shown that, the probability of\ndiscrimination depends on angle of unitary operator of the protocol and\nellipticity of the data qubit state.",
    "arxiv_id": "quant-ph/0510196",
    "authors": [
      "T. Gopinath",
      "Ranabir Das",
      "Anil Kumar"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.042307",
    "journal_ref": "Phys. Rev. A 71, 042307 (2005)",
    "title": "Programmable quantum state discriminator by Nuclear Magnetic Resonance",
    "url": "https://arxiv.org/abs/quant-ph/0510196"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ebf53b45-1972-4147-b241-2f57e23b76a0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}