{
  "id": "2207.03308",
  "version": "v1",
  "published": "2022-07-07T14:11:34.000Z",
  "updated": "2022-07-07T14:11:34.000Z",
  "title": "Transport characteristics of a $\\mathcal{PT}$-symmetric non-Hermitian system: Effect of environmental interaction",
  "authors": [
    "Sudin Ganguly",
    "Souvik Roy",
    "Santanu K. Maiti"
  ],
  "comment": "12 pages, 9 figures",
  "journal": "The European Physical Journal Plus 137, 780 (2022)",
  "doi": "10.1140/epjp/s13360-022-03016-8",
  "categories": [
    "cond-mat.mes-hall",
    "physics.comp-ph",
    "quant-ph"
  ],
  "abstract": "The environmental influence is inevitable but often ignored in the study of electronic transport properties of small-scale systems. Such an environment-mediated interaction can generally be described by a parity-time symmetric non-Hermitian system with a balanced distribution of physical gain and loss. It is quite known in the literature that along with the conventional junction current, another current called bias-driven circular current can be established in a loop geometry depending upon the junction configuration. This current, further, induces a strong magnetic field that can even reach to few Tesla. What will happen to these quantities when the system interacts with its surrounding environment? Would it exhibit a detrimental response? We address such issues considering a two-terminal ring geometry where the junction setup is described within a tight-binding framework. All the transport quantities are evaluated using the standard Green's function formalism based on the Landauer-B\\\"{u}ttiker approach.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-07-07T14:11:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "transport characteristics",
      "environmental interaction",
      "standard greens function formalism",
      "parity-time symmetric non-hermitian system",
      "electronic transport properties"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}