{
  "id": "2309.04598",
  "version": "v1",
  "published": "2023-09-08T21:15:20.000Z",
  "updated": "2023-09-08T21:15:20.000Z",
  "title": "Unruh phenomena and thermalization for qudit detectors",
  "authors": [
    "Caroline Lima",
    "Everett Patterson",
    "Erickson Tjoa",
    "Robert B. Mann"
  ],
  "comment": "10+5 pages, no figures; RevTeX4-2",
  "categories": [
    "quant-ph",
    "gr-qc",
    "hep-th"
  ],
  "abstract": "We study Unruh phenomena for a qudit detector coupled to a quantized scalar field, comparing its response to that of a standard qubit-based Unruh-DeWitt detector. We show that there are limitations to the utility of the detailed balance condition as an indicator for Unruh thermality of higher-dimensional qudit detector models. This can be traced to the fact that a qudit has multiple possible transition channels between its energy levels, in contrast to the 2-level qubit model. We illustrate these limitations using two types of qutrit detector models based on the spin-1 representations of $SU(2)$ and the non-Hermitian generalization of the Pauli observables (the Heisenberg-Weyl operators).",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-09-08T21:15:20.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "thermalization",
      "higher-dimensional qudit detector models",
      "standard qubit-based unruh-dewitt detector",
      "study unruh phenomena",
      "qutrit detector models"
    ],
    "note": {
      "typesetting": "RevTeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}