{
  "id": "0811.4731",
  "version": "v2",
  "published": "2008-11-28T15:27:40.000Z",
  "updated": "2009-05-05T01:35:45.000Z",
  "title": "Coherence of single spins coupled to a nuclear spin bath of varying density",
  "authors": [
    "N. Mizuochi",
    "P. Neumann",
    "F. Rempp",
    "J. Beck",
    "V. Jacques",
    "P. Siyushev",
    "K. Nakamura",
    "D. Twitchen",
    "H. Watanabe",
    "S. Yamasaki",
    "F. Jelezko",
    "J. Wrachtrup"
  ],
  "comment": "4 pages, 4 figures, 1 movie (avi), 1 supplementary material (pdf)",
  "journal": "Phys. Rev. B, 80, 041201(R) (2009)",
  "doi": "10.1103/PhysRevB.80.041201",
  "categories": [
    "quant-ph"
  ],
  "abstract": "The dynamics of single electron and nuclear spins in a diamond lattice with different 13C nuclear spin concentration is investigated. It is shown that coherent control of up to three individual nuclei in a dense nuclear spin cluster is feasible. The free induction decays of nuclear spin Bell states and single nuclear coherences among 13C nuclear spins are compared and analyzed. Reduction of a free induction decay time T2* and a coherence time T2 upon increase of nuclear spin concentration has been found. For diamond material with depleted concentration of nuclear spin, T2* as long as 30 microseconds and T2 of up to 1.8 ms for the electron spin has been observed. The 13C concentration dependence of T2* is explained by Fermi contact and dipolar interactions with nuclei in the lattice. It has been found that T2 decreases approximately as 1/n, where n is 13C concentration, as expected for an electron spin interacting with a nuclear spin bath.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2009-05-05T01:35:45.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "76.30.Mi",
      "03.65.Yz",
      "03.67.-a",
      "71.55.Cn"
    ],
    "keywords": [
      "nuclear spin bath",
      "single spins",
      "varying density",
      "13c concentration",
      "13c nuclear spin concentration"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2009,
      "month": "Jul",
      "volume": 80,
      "number": 4,
      "pages": "041201"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvB..80d1201M"
    }
  }
}