{
  "annotation_id": "f0d17589-6b25-4a96-a666-9656af935861",
  "date_created": "2026-03-02T18:02:03.346000Z",
  "date_modified": "2026-03-02T18:02:03.346000Z",
  "file_hash": "ad071a54d6fc3d6bea889b2d5a034a47c3e1ce839635f13ba16b42762c64ae1e",
  "private": false,
  "record": {
    "abstract": "We analyze a reversibility of optimal Gaussian $1\\to 2$ quantum cloning of a\ncoherent state using only local operations on the clones and classical\ncommunication between them and propose a feasible experimental test of this\nfeature. Performing Bell-type homodyne measurement on one clone and anti-clone,\nan arbitrary unknown input state (not only a coherent state) can be restored in\nthe other clone by applying appropriate local unitary displacement operation.\nWe generalize this concept to a partial LOCC reversal of the cloning and we\nshow that this procedure converts the symmetric cloner to an asymmetric cloner.\nFurther, we discuss a distributed LOCC reversal in optimal $1\\to M$ Gaussian\ncloning of coherent states which transforms it to optimal $1\\to M\u0027$ cloning for\n$M\u0027\u003cM$. Assuming the quantum cloning as a possible eavesdropping attack on\nquantum communication link, the reversibility can be utilized to improve the\nsecurity of the link even after the attack.",
    "arxiv_id": "quant-ph/0310123",
    "authors": [
      "R. Filip",
      "J. Fiurasek",
      "P. Marek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.69.012314",
    "journal_ref": "Phys. Rev. A 69, 012314 (2004).",
    "title": "Reversibility of continuous-variable quantum cloning",
    "url": "https://arxiv.org/abs/quant-ph/0310123"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5d9bf7ac-47ec-4c94-9ba5-13098c9e5892",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}