{
  "id": "2209.14528",
  "version": "v1",
  "published": "2022-09-29T03:18:24.000Z",
  "updated": "2022-09-29T03:18:24.000Z",
  "title": "Quantum Interference and Coherent Population Trapping in a Double Quantum Dot",
  "authors": [
    "Yuan Zhou",
    "Ke Wang",
    "He Liu",
    "Gang Cao",
    "Guang-Can Guo",
    "Xuedong Hu",
    "Hai-Ou Li",
    "Guo-Ping Guo"
  ],
  "comment": "8 pages, 4 figures",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "Quantum interference is a natural consequence of wave-particle duality in quantum mechanics, and is widely observed at the atomic scale. One interesting manifestation of quantum interference is coherent population trapping (CPT), first proposed in three-level driven atomic systems and observed in quantum optical experiments. Here, we demonstrate CPT in a gate-defined semiconductor double quantum dot (DQD), with some unique twists as compared to the atomic systems. Specifically, we observe CPT in both driven and non-driven situations. We further show that CPT in a driven DQD could be used to generate adiabatic state transfer. Moreover, our experiment reveals a non-trivial modulation to the CPT caused by the longitudinal driving field, yielding an odd-even effect and a tunable CPT.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-09-29T03:18:24.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "coherent population trapping",
      "quantum interference",
      "generate adiabatic state transfer",
      "three-level driven atomic systems",
      "gate-defined semiconductor double quantum dot"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}