{
  "annotation_id": "28849b4a-6b11-4187-8ff2-ec243a39e814",
  "date_created": "2026-03-02T18:02:34.651000Z",
  "date_modified": "2026-03-02T18:02:34.651000Z",
  "file_hash": "55a3350fc6d1133090a015c7a8394762df5be56184bd2b2ad6307c3f54de6843",
  "private": false,
  "record": {
    "abstract": "Degeneracy of the bright single exciton spin state is a prerequisite for the\nproduction of triggered polarization-entangled photon pairs from the biexciton\ndecay of a quantum dot. Normally, however, the exciton spin states are split\ndue to in-plane asymmetries. Here we demonstrate that the exciton splitting of\nan individual dot can be tuned through zero by thermal annealing. Repeated\nannealing blueshifts the exciton emission line of the dot, accompanied by a\nreduction and inversion in polarization splitting. Annealing is also\ndemonstrated to control the detuning between the exciton and biexciton\ntransitions in any selected dot.",
    "arxiv_id": "quant-ph/0612047",
    "authors": [
      "D. J. P. Ellis",
      "R. M. Stevenson",
      "R. J. Young",
      "P. Atkinson",
      "D. A. Ritchie",
      "A. J. Shields"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1063/1.2430489",
    "title": "Control of fine-structure splitting of individual InAs quantum dots by   rapid thermal annealing",
    "url": "https://arxiv.org/abs/quant-ph/0612047"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "391e8a91-4c80-4a86-807a-d6e00bdca0f9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}