{
  "annotation_id": "91e7f1e4-219c-4ed1-b92a-5f043315ce26",
  "date_created": "2026-03-02T18:01:55.526000Z",
  "date_modified": "2026-03-02T18:01:55.526000Z",
  "file_hash": "2cd7d2f038a902b05624a9667dcdd87b8e0d6b67b0ee15cc42d0862a5885086b",
  "private": false,
  "record": {
    "abstract": "We consider a three-port single-level quantum dot system with one input and\ntwo output leads. Instead of considering an empty dot, we study the situations\nthat two input electrons co-tunnel through the quantum dot occupied by one or\ntwo dot electrons. We show that electron entanglement can be generated via the\nco-tunneling processes when the dot is occupied by two electrons, yielding\nnon-local spin-singlet states at the output leads. When the dot is occupied by\na single electron, net spin-singlet final states could be generated by\ninjecting polarized electrons to the dot system. When the input electrons are\nunpolarized, we show that by carefully arranging model parameters non-local\nspin-triplet electrons can also be obtained at the output leads if the\ndot-electron spin remains unchanged in the final state.",
    "arxiv_id": "quant-ph/0212131",
    "authors": [
      "Chih-Lung Chou"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Non-Empty Quantum Dot as a Spin-Entangler",
    "url": "https://arxiv.org/abs/quant-ph/0212131"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cd768ff9-32e8-492c-a2f9-40ae0f87580e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}