{
  "id": "0907.4634",
  "version": "v1",
  "published": "2009-07-27T13:56:27.000Z",
  "updated": "2009-07-27T13:56:27.000Z",
  "title": "Towards coherent optical control of a single hole spin: Rabi rotation of a trion conditional on the spin state of the hole",
  "authors": [
    "A. J. Ramsay",
    "S. J. Boyle",
    "T. M. Godden",
    "R. S. Kolodka",
    "A. F. A. Khatab",
    "J. B. B. Oliveira",
    "J. Skiba-Szymanska",
    "H. -Y. Liuc",
    "M. Hopkinson",
    "A. M. Fox",
    "M. S. Skolnick"
  ],
  "comment": "24 pages 10 figs",
  "journal": "Solid State Communications 149 1458 (2009)",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "A hole spin is a potential solid-state q-bit, that may be more robust against nuclear spin induced dephasing than an electron spin. Here we propose and demonstrate the sequential preparation, control and detection of a single hole spin trapped on a self-assembled InGaAs/GaAs quantum dot. The dot is embedded in a photodiode structure under an applied electric-field. Fast, triggered, initialization of a hole spin is achieved by creating a spin-polarized electron-hole pair with a picosecond laser pulse, and in an applied electric-field, waiting for the electron to tunnel leaving a spin-polarized hole. Detection of the hole spin with picosecond time resolution is achieved a second picosecond laser pulse to probe the positive trion transition, where a trion is created conditional on the hole spin to be detected as a change in photocurrent. Finally, using this setup we observe a Rabi rotation of the hole-trion transition that is conditional on the hole spin, which for a pulse-area of $2\\pi$ can be used to impart a phase-shift of $\\pi$ between the hole spin states, a non-general manipulation of the hole spin.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-07-27T13:56:27.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "single hole spin",
      "coherent optical control",
      "spin state",
      "rabi rotation",
      "trion conditional"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 24,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009arXiv0907.4634R"
    }
  }
}