{
  "annotation_id": "2d0931aa-3992-4c37-9469-83f799910192",
  "date_created": "2026-03-02T18:01:46.078000Z",
  "date_modified": "2026-03-02T18:01:46.078000Z",
  "file_hash": "48c5c1d6b8a7ee2db6ce6e0f3816615dc910c2b917c1fa819d7ec20c3af7715f",
  "private": false,
  "record": {
    "abstract": "The ability to simulate one Hamiltonian with another is an important\nprimitive in quantum information processing. In this paper, a simulation method\nfor arbitrary $\\sigma_z \\otimes \\sigma_z$ interaction based on Hadamard\nmatrices (quant-ph/9904100) is generalized for any pairwise interaction. We\ndescribe two applications of the generalized framework. First, we obtain a\nclass of protocols for selecting an arbitrary interaction term in an n-qubit\nHamiltonian. This class includes the scheme given in quant-ph/0106064v2.\nSecond, we obtain a class of protocols for inverting an arbitrary, possibly\nunknown n-qubit Hamiltonian, generalizing the result in quant-ph/0106085v1.",
    "arxiv_id": "quant-ph/0107041",
    "authors": [
      "D. W. Leung"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1080/09500340210133469",
    "journal_ref": "J. Mod. Opt., Vol. 49, No. 8 (2002) p. 1199-1217",
    "title": "Simulation and reversal of n-qubit Hamiltonians using Hadamard matrices",
    "url": "https://arxiv.org/abs/quant-ph/0107041"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cf26de62-a4b8-415c-bd55-1ff8f920c684",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}