{
  "annotation_id": "3bf61527-1bc9-4da5-8f6b-5d15629d3e50",
  "date_created": "2026-03-02T18:02:10.466000Z",
  "date_modified": "2026-03-02T18:02:10.466000Z",
  "file_hash": "29413a93905c486a5686d4f7bbfe96eaa3ef04e1b045e7b8bda888c8adff8fc2",
  "private": false,
  "record": {
    "abstract": "The apparent difficulty in recovering classical nonlinear dynamics and chaos\nfrom standard quantum mechanics has been the subject of a great deal of\ninterest over the last twenty years. For open quantum systems - those coupled\nto a dissipative environment and/or a measurement device - it has been\ndemonstrated that chaotic-like behaviour can be recovered in the appropriate\nclassical limit. In this paper, we investigate the entanglement generated\nbetween two nonlinear oscillators, coupled to each other and to their\nenvironment. Entanglement - the inability to factorise coupled quantum systems\ninto their constituent parts - is one of the defining features of quantum\nmechanics. Indeed, it underpins many of the recent developments in quantum\ntechnologies. Here we show that the entanglement characteristics of two\n`classical\u0027 states (chaotic and periodic solutions) differ significantly in the\nclassical limit. In particular, we show that significant levels of entanglement\nare preserved only in the chaotic-like solutions.",
    "arxiv_id": "quant-ph/0409112",
    "authors": [
      "M. J. Everitt",
      "T. D. Clark",
      "P. B. Stiffell",
      "J. F. Ralph",
      "A. R. Bulsara",
      "C. J. Harland"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/7/1/064",
    "journal_ref": "New J. Phys. 7 (2005) 64",
    "title": "Persistent Entanglement in the Classical Limit",
    "url": "https://arxiv.org/abs/quant-ph/0409112"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4e409ea7-c43a-4f74-839b-a0db14cbe1d0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}