{
  "id": "2306.00981",
  "version": "v1",
  "published": "2023-06-01T17:59:31.000Z",
  "updated": "2023-06-01T17:59:31.000Z",
  "title": "Precise Determination of Blackbody Radiation Shifts in a Strontium Molecular Lattice Clock",
  "authors": [
    "B. Iritani",
    "E. Tiberi",
    "W. Skomorowski",
    "R. Moszynski",
    "M. Borkowski",
    "T. Zelevinsky"
  ],
  "comment": "6 pages, 4 figures",
  "categories": [
    "physics.atom-ph",
    "physics.atm-clus",
    "physics.chem-ph"
  ],
  "abstract": "Molecular lattice clocks enable the search for new physics, such as fifth forces or temporal variations of fundamental constants, in a manner complementary to atomic clocks. Blackbody radiation (BBR) is a major contributor to the systematic error budget of conventional atomic clocks and is notoriously difficult to characterize and control. Here, we combine infrared Stark-shift spectroscopy in a molecular lattice clock and modern quantum chemistry methods to characterize the polarizabilities of the Sr$_2$ molecule from dc to infrared. Using this description, we determine the static and dynamic blackbody radiation shifts for all possible vibrational clock transitions to the $10^{-16}$ level. This constitutes an important step towards mHz-level molecular spectroscopy in Sr$_2$, and provides a framework for evaluating BBR shifts in other homonuclear molecules.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-06-01T17:59:31.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "strontium molecular lattice clock",
      "precise determination",
      "atomic clocks",
      "dynamic blackbody radiation shifts",
      "vibrational clock transitions"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}