{
  "annotation_id": "a1cf69a9-ecd8-402d-a170-ad0a6f695e11",
  "date_created": "2026-03-02T18:02:34.663000Z",
  "date_modified": "2026-03-02T18:02:34.663000Z",
  "file_hash": "c6a1db8da05b40524f42cfdf85dc330941d36eb63a6604e102e03493f52c627c",
  "private": false,
  "record": {
    "abstract": "We propose a method for laser cooling group-II-like atoms without changing\nthe quantum state of their nuclear spins, thus preserving coherences that are\nusually destroyed by optical pumping. As group-II-like atoms have a $^1S_0$\nclosed-shell ground state, nuclear spin and electronic degrees of freedom are\ndecoupled, allowing for independent manipulation. The hyperfine interaction\nthat couples these degrees of freedom in excited states can be suppressed\nthrough the application of external magnetic fields. Our protocol employs\nresolved-sideband cooling on the forbidden clock transition, $^1S_0 \\to\n{}^3P_0$, with quenching via coupling to the rapidly decaying $^1P_1$ state,\ndeep in the Paschen-Back regime. This makes it possible to laser cool neutral\natomic qubits without destroying the quantum information stored in their\nnuclear spins, as shown in two examples, $^{171}$Yb and $^{87}$Sr.",
    "arxiv_id": "quant-ph/0702120",
    "authors": [
      "Iris Reichenbach",
      "Ivan H. Deutsch"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.99.123001",
    "journal_ref": "Phys. Rev. Lett. 99, 123001 (2007)",
    "title": "Sideband cooling while preserving coherences in the nuclear spin state   in group-II-like atoms",
    "url": "https://arxiv.org/abs/quant-ph/0702120"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "885fa98f-28f3-4696-8c0b-53fcd2d0980d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}