{
  "annotation_id": "54e04d46-cb57-4055-a3f3-12823db967b7",
  "date_created": "2026-03-02T18:02:05.877000Z",
  "date_modified": "2026-03-02T18:02:05.877000Z",
  "file_hash": "b9053f89c293434925bf2c2324827c66f4c5f6af2b82a2912942322284bfd3a8",
  "private": false,
  "record": {
    "abstract": "The reversion of the time evolution of a quantum state can be achieved by\nchanging the sign of the Hamiltonian as in the polarization echo experiment in\nNMR. In this work we describe an alternative mechanism inspired by the acoustic\ntime reversal mirror. By solving the inverse time problem in a discrete space\nwe develop a new procedure, the perfect inverse filter. It achieves the exact\ntime reversion in a given region by reinjecting a prescribed wave function at\nits periphery.",
    "arxiv_id": "quant-ph/0403130",
    "authors": [
      "Horacio M. Pastawski",
      "Ernesto P. Danieli",
      "Hernan L. Calvo",
      "Luis E. F. Foa Torres"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "doi": "10.1209/0295-5075/77/40001",
    "journal_ref": "EPL 77, 40001 (2007)",
    "title": "Towards a time-reversal mirror for quantum systems",
    "url": "https://arxiv.org/abs/quant-ph/0403130"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "aec9336a-0f53-4df1-81d5-5e576bc5850b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}