{
  "annotation_id": "355942fd-0308-4710-b553-78143c997702",
  "date_created": "2026-03-02T18:02:34.545000Z",
  "date_modified": "2026-03-02T18:02:34.545000Z",
  "file_hash": "7544bb09c552e6359d5f2528b21ca57154a1a47ec1cacf92bff1ae4fbf30104a",
  "private": false,
  "record": {
    "abstract": "An expression is proposed for the quantum mechanical state of a pre- and\npost-selected ensemble, which is an ensemble determined by the final as well as\nthe initial state of the quantum systems involved. It is shown that the\nprobabilities calculated from the proposed state agree with previous\nexpressions, for cases where they both apply. The same probabilities are found\nwhen they are calculated in the forward- or reverse-time directions. This work\nwas prompted by several problems raised by Shimony recently in relation to the\nstate, and time symmetry, of pre- and post-selected ensembles.",
    "arxiv_id": "quant-ph/0702231",
    "authors": [
      "D. J. Miller"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1007/s10773-008-9876-x",
    "title": "Pre- and post-selected ensembles and time-symmetry in quantum mechanics",
    "url": "https://arxiv.org/abs/quant-ph/0702231"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6d19674f-37fc-494b-a634-240cff50d504",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}