{
  "annotation_id": "ef11114f-93f3-4b36-a848-618f52d44c5e",
  "date_created": "2026-03-02T18:02:30.762000Z",
  "date_modified": "2026-03-02T18:02:30.762000Z",
  "file_hash": "e7d852f1c19d773c8158492f7c9329adca26566edc5ff14e046aa8311a0bbe79",
  "private": false,
  "record": {
    "abstract": "We analyzed the fidelity of the quantum state transfer (QST) from a\nphoton-polarization qubit to an electron-spin-polarization qubit in a\nsemiconductor quantum dot, with special attention to the exchange interaction\nbetween the electron and the simultaneously created hole. In order to realize a\nhigh-fidelity QST we had to separate the electron and hole as soon as possible,\nsince the electron-hole exchange interaction modifies the orientation of the\nelectron spin. Thus, we propose a double-dot structure to separate the electron\nand hole quickly, and show that the fidelity of the QST can reach as high as\n0.996 if the resonant tunneling condition is satisfied.",
    "arxiv_id": "quant-ph/0608188",
    "authors": [
      "Yoshiaki Rikitake",
      "Hiroshi Imamura"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevB.74.081307",
    "title": "Effect of exchange interaction on fidelity of quantum state transfer   from a photon qubit to an electron-spin qubit",
    "url": "https://arxiv.org/abs/quant-ph/0608188"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cd710476-3a33-4ed6-9393-383bf315a080",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}