{
  "annotation_id": "d696c57a-ad6e-4976-b4b0-9cde27983be2",
  "date_created": "2026-03-02T18:01:42.064000Z",
  "date_modified": "2026-03-02T18:01:42.064000Z",
  "file_hash": "45bb0f2a4fc55445478a873252ab62b1a09e152aaa2d7f98b43c8886b59f7b86",
  "private": false,
  "record": {
    "abstract": "We discuss here the best disentanglement processes of states of two two-level\nsystems which belong to (i) the universal set, (ii) the set in which the states\nof one party lie on a single great circle of the Bloch sphere, and (iii) the\nset in which the states of one party commute with each other, by teleporting\nthe states of one party (on which the disentangling machine is acting) through\nthree particular type of separable channels, each of which is a mixture of Bell\nstates. In the general scenario, by teleporting one party\u0027s state of an\narbitrary entangled state of two two-level parties through some mixture of Bell\nstates, we have shown that this entangled state can be made separable by using\na physically realizable map $\\tilde{V}$, acting on one party\u0027s states, if\n$\\tilde{V} (I) = I, \\tilde{V} ({\\sigma}_j) = {\\lambda}_j {\\sigma}_j$, where\n${\\lambda}_j \\ge 0$ (for $j = 1, 2, 3$), and ${\\lambda}_1 + {\\lambda}_2 +\n{\\lambda}_3 \\le 1$.",
    "arxiv_id": "quant-ph/0102010",
    "authors": [
      "Sibasish Ghosh",
      "Guruprasad Kar",
      "Anirban Roy",
      "Debasis Sarkar",
      "Ujjwal Sen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.64.042114",
    "title": "Realization of Optimal Disentanglement by Teleportation via Separable   Channel",
    "url": "https://arxiv.org/abs/quant-ph/0102010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7ed7c7ce-4d99-4aa5-b6c3-48d7e530e0e4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}