{
  "id": "1411.6738",
  "version": "v1",
  "published": "2014-11-25T05:53:32.000Z",
  "updated": "2014-11-25T05:53:32.000Z",
  "title": "Fast Electrical Control of Single Electron Spins in Quantum Dots with Vanishing Influence from Nuclear Spins",
  "authors": [
    "J. Yoneda",
    "T. Otsuka",
    "T. Nakajima",
    "T. Takakura",
    "T. Obata",
    "M. Pioro-Ladrière",
    "H. Lu",
    "C. Palmstrøm",
    "A. C. Gossard",
    "S. Tarucha"
  ],
  "comment": "23 pages, 6 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We demonstrate fast universal electrical spin manipulation with inhomogeneous magnetic fields. With fast Rabi frequency up to 127 MHz, we leave the conventional regime of strong nuclear-spin influence and observe a spin-flip fidelity > 96%, a distinct chevron Rabi pattern in the spectral-time domain, and spin resonance linewidth limited by the Rabi frequency, not by the dephasing rate. In addition, we establish fast z-rotations up to 54 MHz by directly controlling the spin phase. Our findings will significantly facilitate tomography and error correction with electron spins in quantum dots.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-11-25T05:53:32.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "76.30.-v",
      "03.67.Lx",
      "73.63.Kv",
      "75.75.-c"
    ],
    "keywords": [
      "single electron spins",
      "fast electrical control",
      "quantum dots",
      "nuclear spins",
      "universal electrical spin manipulation"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevLett.113.267601",
      "journal": "Physical Review Letters",
      "year": 2014,
      "month": "Dec",
      "volume": 113,
      "number": 26,
      "pages": 267601
    },
    "note": {
      "typesetting": "TeX",
      "pages": 23,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014PhRvL.113z7601Y"
    }
  }
}