{
  "id": "2206.15193",
  "version": "v1",
  "published": "2022-06-30T11:13:38.000Z",
  "updated": "2022-06-30T11:13:38.000Z",
  "title": "Effects of coupling strength of the electron-photon and the photon-environment interactions on the electron transport through multiple-resonances of\\break a double quantum dot system in a photon cavity",
  "authors": [
    "Halo Anwar Abdulkhalaq",
    "Nzar Rauf Abdullah",
    "Vidar Gudmundsson"
  ],
  "doi": "10.1016/j.physb.2022.414097",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study electron transport properties through a double quantum dot (DQD) system coupled to a single mode photon cavity, DQD-cavity. The DQD system has a complex multilevel energy spectrum, in which by tuning the photon energy several anti-crossings between the electron states of the DQD system and photon dressed states are produced, which have not been seen in a simple two level DQD system. Three different regions of the photon energy are studied based on anti-crossings, where the photon energy ranges are classified as \"low\", \"intermediate\", and \"high\". % The anti-crossings represent multiple Rabi-resonances, which lead to a current dip in the electron transport at the \"intermediate\" photon energy. Increasing the electron-photon coupling strength, $g_\\gamma$, the photon exchanges between the anti-crossing states are changed leading to a dislocation of the multiple Rabi resonance states. Consequently, the current dip at the intermediate photon energy is further reduced. % Additionally, we tune the cavity-environment coupling, $\\kappa$, to see how the transport properties in the strong coupling regime, g$_{\\gamma}>\\kappa$, are changed for different directions of the photon polarization. Increasing $\\kappa$ with a constant value of $g_\\gamma$, a current enhancement in the intermediate photon energy is found, and a reduction in the current is seen for the \"high\" photon energy range. The current enhancement in the intermediate photon energy is caused by the weakening of the multiple Rabi-resonance in the system.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-06-30T11:13:38.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "double quantum dot system",
      "electron transport",
      "photon cavity",
      "intermediate photon energy",
      "coupling strength"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}