{
  "annotation_id": "8e59e5cb-75d2-4737-a15a-1db01a4a9ba9",
  "date_created": "2026-03-02T18:02:17.141000Z",
  "date_modified": "2026-03-02T18:02:17.141000Z",
  "file_hash": "46244618c99eda2ae688bade478664989b952f2a680aa2742d52357ad96bedee",
  "private": false,
  "record": {
    "abstract": "The stochastic-gauge representation is a method of mapping the equation of\nmotion for the quantum mechanical density operator onto a set of equivalent\nstochastic differential equations. One of the stochastic variables is termed\nthe \"weight\", and its magnitude is related to the importance of the stochastic\ntrajectory. We investigate the use of Monte Carlo algorithms to improve the\nsampling of the weighted trajectories and thus reduce sampling error in a\nsimulation of quantum dynamics. The method can be applied to calculations in\nreal time, as well as imaginary time for which Monte Carlo algorithms are\nmore-commonly used. The method is applicable when the weight is guaranteed to\nbe real, and we demonstrate how to ensure this is the case. Examples are given\nfor the anharmonic oscillator, where large improvements over stochastic\nsampling are observed.",
    "arxiv_id": "quant-ph/0507003",
    "authors": [
      "Mark R. Dowling",
      "Matthew J. Davis",
      "Peter D. Drummond",
      "Joel F. Corney"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.jcp.2006.05.017",
    "journal_ref": "J. Comp. Phys. 220, 549 (2007)",
    "title": "Monte Carlo techniques for real-time quantum dynamics",
    "url": "https://arxiv.org/abs/quant-ph/0507003"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f63b61d9-8bc0-4791-928f-c9849ba6eefd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}