{
  "abstract": "Circulating currents in triangular triple quantum dots reverse repeatedly with bias even at zero magnetic flux and for a real Hamiltonian, a phenomenon whose origin has remained unclear. We show that dissipative tunneling prepares an orbital pseudospin, while virtual charge fluctuations generate a noncollinear Lamb field that rotates it toward the chiral direction. Bias changes their relative orientation and thereby reverses the current. This reservoir-induced orbital Hanle effect converts a nonchiral orbital polarization into scalar spin chirality, which an exact ground-multiplet identity links to the circulating current. Hierarchical-equations-of-motion calculations show that the low-bias reversal survives beyond the second-order weak-coupling description, while the quadratic growth of chirality after a sudden voltage switch identifies precession. More broadly, time-reversal-odd responses can emerge in open quantum systems from the interplay between dissipative state preparation and coherent precession.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.30324",
  "author_total": 2,
  "authors": [
    {
      "name": "YuanDong Wang"
    },
    {
      "name": "JianHua Wei"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c6zgzqq3xtnsj.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.30324",
  "fulltext_url": null,
  "id": "c6zgzqq3xtnsj",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.30324",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W7204906422",
  "pdf_url": "https://arxiv.org/pdf/2608.30324",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c6zgzqq3xtnsj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2608.30324",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.30324"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Scalar Spin Chirality from Dissipative Pumping and Lamb Shift Precession",
  "title_text": "Scalar Spin Chirality from Dissipative Pumping and Lamb Shift Precession",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:50Z",
  "url": "https://research.draconitic.com/paper/c6zgzqq3xtnsj",
  "venue": "arXiv",
  "versions": []
}