{
  "id": "2302.11169",
  "version": "v1",
  "published": "2023-02-22T06:21:28.000Z",
  "updated": "2023-02-22T06:21:28.000Z",
  "title": "Quantum sensing and imaging with spin defects in hexagonal boron nitride",
  "authors": [
    "Sumukh Vaidya",
    "Xingyu Gao",
    "Saakshi Dikshit",
    "Igor Aharonovich",
    "Tongcang Li"
  ],
  "comment": "review article, 12 figures",
  "categories": [
    "quant-ph",
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "Color centers in hexagonal boron nitride (hBN) have recently emerged as promising candidates for a new wave of quantum applications. Thanks to hBN's high stability and 2-dimensional (2D) layered structure, color centers in hBN can serve as robust quantum emitters that can be readily integrated into nanophotonic and plasmonic structures on a chip. More importantly, the recently discovered optically addressable spin defects in hBN provide a quantum interface between photons and electron spins for quantum sensing applications. The most well-studied hBN spin defects so far, the negatively charged boron vacancy ($V_B^-$) spin defects, have been used for quantum sensing of static magnetic fields, magnetic noise due to spin fluctuations, temperature, strain, nuclear spins, RF signals, and beyond. In particular, hBN nanosheets with spin defects can form van der Waals (vdW) heterostructures with 2D magnetic or other materials for in situ quantum sensing and imaging. This review summarizes the rapidly evolving field of nanoscale and microscale quantum sensing with spin defects in hBN. We introduce basic properties of hBN spin defects, quantum sensing protocols, and recent experimental demonstrations of quantum sensing and imaging with hBN spin defects. We also discuss methods to improve their sensitivity. Finally, we envision some potential development and applications of hBN spin defects.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-02-22T06:21:28.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum sensing",
      "hexagonal boron nitride",
      "color centers",
      "form van der waals",
      "applications"
    ],
    "tags": [
      "review article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}