{
  "annotation_id": "0223c658-705a-4400-b407-cfb405e0f0f8",
  "date_created": "2026-03-02T18:01:00.648000Z",
  "date_modified": "2026-03-02T18:01:00.648000Z",
  "file_hash": "5707e229a54a6004d64599b32e0126b7985055e233e969f82b23aeabe503943a",
  "private": false,
  "record": {
    "abstract": "The electric quadrupole moment for the $4d ^2D_{5/2}$ state of\n$\\mathrm{^{88}Sr^+}$, one of the most important candidates for an optical\nclock, has been calculated using the relativistic coupled-cluster theory. The\nresult of the calculation is presented and the important many-body\ncontributions are highlighted. The calculated electric quadrupole moment is\n$(2.94\\pm0.07)ea_{0}^{2}$, where $a_{0}$ is the Bohr radius and $e$ the\nelectronic charge while the measured value is $(2.6\\pm0.3)ea_{0}^{2}$. This is\nso far the most accurate determination of the electric quadrupole moment for\nthe above mentioned state.",
    "arxiv_id": "physics/0507199",
    "authors": [
      "Chiranjib Sur",
      "K. V. P. Latha",
      "Rajat K. Chaudhuri",
      "B. P. Das",
      "D. Mukherjee"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.comp-ph"
    ],
    "title": "Electric quadrupole moment of the $4d ^{2}D_{5/2}$ state in   $^{88}Sr^{+}$ and its role in an optical frequency standard",
    "url": "https://arxiv.org/abs/physics/0507199"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2e6b448c-0dc1-40f7-a807-b8ef8a09b64b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}