{
  "abstract": "Persistent current is a hallmark of quantum phase coherence. We study the fate of the persistent current in a nonequilibrium setting, where a tight-binding ring is subjected to stochastic disorder as well as a fermionic reservoir attached to each site. We evaluate the current using the Keldysh technique and find that it exhibits nonmonotonic behavior, suggesting two distinct mechanisms of decoherence. While coupling to the reservoirs introduces a coherence length scale given by the inverse of the coupling strength, the other mechanism is more subtle and driven by the ratio of noise strength to reservoir coupling. The interplay of noise and reservoir constitutes a purely nonequilibrium steady state with a flatter distribution function that we effectively describe using classical rate equations. We also discuss possibilities of realizing our findings in ultracold-atom experiments.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "name": "Samudra Sur"
    },
    {
      "name": "Thierry Giamarchi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a74w571szwqkz.bib",
  "cited_by": 0,
  "doi": "10.1103/486b-4qgc",
  "fulltext_url": "http://doi.org/10.1103/486b-4qgc",
  "id": "a74w571szwqkz",
  "issns": [
    "2643-1564"
  ],
  "landing_url": "https://doi.org/10.1103/486b-4qgc",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QC1-999"
    ],
    [
      "openalex",
      "3104|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W7212391452",
  "pdf_url": "http://doi.org/10.1103/486b-4qgc",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-09",
  "publisher": "American Physical Society",
  "ris": "https://research.draconitic.com/paper/a74w571szwqkz.ris",
  "sources": [
    {
      "first_seen": "2026-11-09T14:21:38Z",
      "native_id": "201f314c77784e809c3420e286879289",
      "source": "doaj",
      "url": "https://doi.org/10.1103/486b-4qgc"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3104|Quantum and electron transport phenomena",
      "subfield": "quantum"
    }
  ],
  "title": "Interplay of noise and reservoir-induced decoherence in persistent currents",
  "title_text": "Interplay of noise and reservoir-induced decoherence in persistent currents",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T14:21:38Z",
  "url": "https://research.draconitic.com/paper/a74w571szwqkz",
  "venue": "Physical Review Research",
  "versions": []
}