{
  "id": "1512.06939",
  "version": "v1",
  "published": "2015-12-22T03:04:06.000Z",
  "updated": "2015-12-22T03:04:06.000Z",
  "title": "Quantum efficiency of a microwave photon detector based on a double quantum dot",
  "authors": [
    "Clement H. Wong",
    "Maxim G. Vavilov"
  ],
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Motivated by recent interest in implementing circuit quantum electrodynamics with semiconducting quantum dots, we consider a double quantum dot (DQD) capacitively coupled to a superconducting cavity that is driven by the microwave field of a superconducting transmission line. We analyze the DQD current response using input-output theory and show that the cavity-coupled DQD is a sensitive microwave single photon detector with quantum efficiency up to $80$\\% for currently available experimental parameters of DQD dissipation and coupling. We determine the parameter regime for which incident photons is completely absorbed and very high ($\\gtrsim$ 98\\%) efficiency can be achieved.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-12-22T03:04:06.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "double quantum dot",
      "microwave photon detector",
      "quantum efficiency",
      "sensitive microwave single photon detector",
      "dqd current response"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015arXiv151206939W"
    }
  }
}