{
  "id": "1701.06848",
  "version": "v1",
  "published": "2017-01-24T12:52:39.000Z",
  "updated": "2017-01-24T12:52:39.000Z",
  "title": "Coherent control of the silicon-vacancy spin in diamond",
  "authors": [
    "Benjamin Pingault",
    "David-Dominik Jarausch",
    "Christian Hepp",
    "Lina Klintberg",
    "Jonas N. Becker",
    "Matthew Markham",
    "Christoph Becher",
    "Mete Atatüre"
  ],
  "categories": [
    "quant-ph",
    "cond-mat.mes-hall"
  ],
  "abstract": "Spin impurities in diamond have emerged as a promising building block in a wide range of solid-state-based quantum technologies. The negatively charged silicon-vacancy centre combines the advantages of its high-quality photonic properties with a ground-state electronic spin, which can be read out optically. However, for this spin to be operational as a quantum bit, full quantum control is essential. Here, we report the measurement of optically detected magnetic resonance and the demonstration of coherent control of a single silicon-vacancy centre spin with a microwave field. Using Ramsey interferometry, we directly measure a spin coherence time, T2*, of 115 +/- 9 ns at 3.6 K. The temperature dependence of coherence times indicates that dephasing and decay of the spin arise from single phonon-mediated excitation between orbital branches of the ground state. Our results enable the silicon-vacancy centre spin to become a controllable resource to establish spin-photon quantum interfaces.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-01-24T12:52:39.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "coherent control",
      "silicon-vacancy spin",
      "single silicon-vacancy centre spin",
      "full quantum control",
      "ground-state electronic spin"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}