{
  "annotation_id": "b16cc579-d2b6-44a7-8628-34c9e5915c01",
  "date_created": "2026-03-02T18:01:42.010000Z",
  "date_modified": "2026-03-02T18:01:42.010000Z",
  "file_hash": "88d305aad4c9589904fdc7b5655f09c8ccee24c16a2897106ae7f0d5880b0570",
  "private": false,
  "record": {
    "abstract": "When a superposition $(|\\alpha\u003e-|-\\alpha\u003e)$ of two coherent states with\nopposite phase falls upon a 50-50 beamsplitter, the resulting state is\nentangled. Remarkably, the amount of entanglement is exactly 1 ebit,\nirrespective of $\\alpha$, as was recently discovered by O. Hirota and M.\nSasaki. Here we discuss decoherence properties of such states and give a simple\nprotocol that teleports one qubit encoded in Schr\\\"odinger cat states",
    "arxiv_id": "quant-ph/0012086",
    "authors": [
      "S. J. van Enk",
      "O. Hirota"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.64.022313",
    "journal_ref": "Phys. Rev. A 64, 022313 (2001)",
    "title": "Entangled coherent states: teleportation and decoherence",
    "url": "https://arxiv.org/abs/quant-ph/0012086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9f51168f-99e3-4bd8-b108-32e448a5ffe5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}