{
  "annotation_id": "9ffe30ed-daa8-4a2f-8ac9-086e34e30f0a",
  "date_created": "2026-03-02T18:02:12.914000Z",
  "date_modified": "2026-03-02T18:02:12.914000Z",
  "file_hash": "7665f9a0d4eceba19ad7eee75a468f2da4ea3565fff7ccd9b004e209f487cbdb",
  "private": false,
  "record": {
    "abstract": "Favored schemes for trapped-ion quantum logic gates use bichromatic laser\nfields to couple internal qubit states with external motion through a\n\"spin-dependent force.\" We introduce a new degree of freedom in this coupling\nthat reduces its sensitivity to phase decoherence. We demonstrate bichromatic\nspin-dependent forces on a single trapped $^{111}$Cd$^+$ ion, and show that\nphase coherence of the resulting \"Schr\\\"{o}dinger-cat\" states of motion depends\ncritically upon the spectral arrangement of the optical fields. This applies\ndirectly to the operation of entangling gates on multiple ions.",
    "arxiv_id": "quant-ph/0411068",
    "authors": [
      "P. C. Haljan",
      "K. -A. Brickman",
      "L. Deslauriers",
      "P. J. Lee",
      "C. Monroe"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.94.153602",
    "title": "Spin-dependent forces on trapped ions for phase-stable quantum gates and   motional Schrodinger-cat states",
    "url": "https://arxiv.org/abs/quant-ph/0411068"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0f58fcc3-0ba1-4a9c-a322-b4d0b2a85af3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}