{
  "annotation_id": "4f501f40-5df1-4b43-be66-69113cd8d27b",
  "date_created": "2026-03-02T18:01:59.859000Z",
  "date_modified": "2026-03-02T18:01:59.859000Z",
  "file_hash": "1d60348486711bb9b5013cecda7988aaba739c1344413df8beb8e9b72d5dcb2f",
  "private": false,
  "record": {
    "abstract": "The dynamics of the pairwise entanglement in a qubit lattice in the presence\nof static imperfections exhibits different regimes. We show that there is a\ntransition from a perturbative region, where the entanglement is stable against\nimperfections, to the ergodic regime, in which a pair of qubits becomes\nentangled with the rest of the lattice and the pairwise entanglement drops to\nzero. The transition is almost independent of the size of the quantum computer.\nWe consider both the case of an initial maximally entangled and separable\nstate. In this last case there is a broad crossover region in which the\ncomputer imperfections can be used to create a significant amount of pairwise\nentanglement.",
    "arxiv_id": "quant-ph/0307036",
    "authors": [
      "Simone Montangero",
      "Giuliano Benenti",
      "Rosario Fazio"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.dis-nn"
    ],
    "doi": "10.1103/PhysRevLett.91.187901",
    "journal_ref": "Phys. Rev. Lett. 91, 187901 (2003)",
    "title": "Dynamics of entanglement in quantum computers with imperfections",
    "url": "https://arxiv.org/abs/quant-ph/0307036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3351ebc9-c7b5-4496-b09a-b243dc612cd6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}