{
  "abstract": "In an earlier work, we showed that, in the interaction-dominant setting, coupling the conjugate variables of a subsystem to distinct environment modes drives the subsystem to a maximally mixed state. Here, we extend the study to the full quadratic dynamics of a single-mode subsystem coupled to a two-mode environment, and identify the phase-space mechanism responsible for the asymptotic behavior. By tracking the exact reduced Weyl characteristic and Wigner functions, we demonstrate that they lose their dependence on local phase-space coordinates on every fixed compact region. In free-particle model, this happens for all values of coupling, whereas in the harmonic oscillator model, it happens above a critical value of the coupling. Under a finite-volume and momentum regularization, this behavior corresponds to the reduced subsystem approaching a maximally mixed state.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.25976",
  "author_total": 2,
  "authors": [
    {
      "name": "S. Adarsh"
    },
    {
      "name": "T. P. Sreeraj"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4t7xa5fk3n77m.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.25976",
  "fulltext_url": null,
  "id": "4t7xa5fk3n77m",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.25976",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum Mechanics and Applications"
    ]
  ],
  "openalex": "W7223045380",
  "pdf_url": "https://arxiv.org/pdf/2610.25976",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4t7xa5fk3n77m.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.25976",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.25976"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Conjugate measurement-induced evolution towards maximally mixed states in quadratic quantum systems",
  "title_text": "Conjugate measurement-induced evolution towards maximally mixed states in quadratic quantum systems",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/4t7xa5fk3n77m",
  "venue": "arXiv",
  "versions": []
}