{
  "id": "0905.3254",
  "version": "v1",
  "published": "2009-05-20T09:19:34.000Z",
  "updated": "2009-05-20T09:19:34.000Z",
  "title": "Universal protection of unitary evolution from slow noise: dynamical control pushed to the extreme",
  "authors": [
    "G. Bensky",
    "E. Brion",
    "F. Carlier",
    "V. M. Akulin",
    "G. Kurizki"
  ],
  "comment": "10 pages, 1 figure",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We propose a technique that allows to simultaneously perform universal control of the evolution operator and compensate for the first order contribution of an arbitrary Hermitian constant noise. We show that, at least, a three-valued Hamiltonian is needed in order to protect the system against any such noise. This technique is illystrated by an explicit algorithm for a control sequence that is applied to numerically design a safe two-qubit gate.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-05-20T09:19:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dynamical control",
      "universal protection",
      "unitary evolution",
      "slow noise",
      "arbitrary hermitian constant noise"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009arXiv0905.3254B"
    }
  }
}