{
  "annotation_id": "78f21e10-e2ce-41c1-bec3-a1a907da06a7",
  "date_created": "2026-03-02T18:02:27.226000Z",
  "date_modified": "2026-03-02T18:02:27.226000Z",
  "file_hash": "99c179ff43f6608719537219d24596e78d378832fd683e6368226fd97d88f456",
  "private": false,
  "record": {
    "abstract": "We analyse the off-resonant Raman interaction of a single broadband photon,\ncopropagating with a classical `control\u0027 pulse, with an atomic ensemble. It is\nshown that the classical electrodynamical structure of the interaction\nguarantees canonical evolution of the quantum mechanical field operators. This\nallows the interaction to be decomposed as a beamsplitter transformation\nbetween optical and material excitations on a mode-by-mode basis. A single,\ndominant modefunction describes the dynamics for arbitrary control pulse\nshapes.\n  Complete transfer of the quantum state of the incident photon to a collective\ndark state within the ensemble can be achieved by shaping the control pulse so\nas to match the dominant mode to the temporal mode of the photon. Readout of\nthe material excitation, back to the optical field, is considered in the\ncontext of the symmetry connecting the input and output modes. Finally, we show\nthat the transverse spatial structure of the interaction is characterised by\nthe same mode decomposition.",
    "arxiv_id": "quant-ph/0603268",
    "authors": [
      "J Nunn",
      "I A Walmsley",
      "M G Raymer",
      "K Surmacz",
      "F C Waldermann",
      "Z Wang",
      "D Jaksch"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.75.011401",
    "title": "Modematching an optical quantum memory",
    "url": "https://arxiv.org/abs/quant-ph/0603268"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "91f41842-da75-4211-be13-1e1fd14d7eeb",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}