{
  "annotation_id": "96afef1e-e256-4648-96fc-286ffd4e8fed",
  "date_created": "2026-03-02T18:02:13.456000Z",
  "date_modified": "2026-03-02T18:02:13.456000Z",
  "file_hash": "634acacb4759d1e7c200a4e2060c38981764a961c7a707f7de01e54a0618076a",
  "private": false,
  "record": {
    "abstract": "We find specific polarizations of components of a bichromatic field, which\nallow one to prepare pure superposition states of atoms, using the coherent\npopulation trapping effect. These $m$$-$$m$ states are prepared in the system\nof Zeeman substates of the ground-state hyperfine levels with arbitrary angular\nmomenta $F_1$ and $F_2$. It is established that, in general case $m\\ne 0$, the\nuse of waves with elliptical polarizations ($\\epsilon_1$$\\perp$$\\epsilon_2$\nfield configuration for alkali metal atoms) is necessary for the pure state\npreparation. We analytically show an unique advantage of the D1 line of alkali\nmetal atoms, which consists in the possibility to generate pure $m$$-$$m$\nstates even in the absence of spectral resolution of the excited-state\nhyperfine levels, contrary to the D2 line.",
    "arxiv_id": "quant-ph/0503036",
    "authors": [
      "A. V. Taichenachev",
      "V. I. Yudin",
      "V. L. Velichansky",
      "A. S. Zibrov"
    ],
    "categories": [
      "quant-ph",
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.73.013812",
    "title": "Pure superposition states of atoms generated by a bichromatic   elliptically polarized filed",
    "url": "https://arxiv.org/abs/quant-ph/0503036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b9778ec7-a398-490c-98be-c98a62384bea",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}