{
  "annotation_id": "769324e7-c90d-4c66-aa5c-69e67c4325aa",
  "date_created": "2026-02-17T05:53:15.712000Z",
  "date_modified": "2026-02-17T05:53:15.712000Z",
  "file_hash": "7f9f5e11ffc4ed15baccecceba168d5fa8d0de80c9254382e6c2b4e54e087138",
  "private": false,
  "record": {
    "abstract": "We extend the Lorentzian replica framework for computing entanglement entropy to fully time-dependent gravitational settings, with emphasis on cosmological spacetimes without boundaries and gravitational theories lacking a dual quantum field theory description. Our approach constructs the replica path integral directly in real time, avoiding reliance on Euclidean continuation or time-reflection symmetry, and identifies the geometric conditions under which Lorentzian replica saddles appear in dynamical backgrounds. We analyze replica wormholes in both contexts, recovering a generalized version of the island rule. For completeness, we provide a concise review of the existing Lorentzian replica construction for quantum field theories and their holographic duals, which forms the foundation for our generalization.",
    "arxiv_id": "2601.08756",
    "authors": [
      "Anastasios Irakleous"
    ],
    "categories": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Replica Trick in Time-Dependent Geometries",
    "url": "https://arxiv.org/abs/2601.08756",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "85b27c98-937a-423b-bfda-3938f766a71e",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}