{
  "abstract": "We show that $\\mathcal{PT}$-symmetry acts as the effective time-reversal symmetry governing Anderson localization in the antiferromagnet BaMn$_2$Bi$_2$, whereas the general time-reversal symmetry is broken by its long-range magnetic order. The magnetoconductance follows the laws established from breaking time-reversal symmetry throuhg the orbital coupling of charge carriers to the magnet vector potential, however, the degrees of symmetry breaking are qualitatively modulated by the magnetocrystalline anisotropy stabilizing $\\mathcal{PT}$-related sublattices. The quantum interferences and hoping amplitudes governing the phenomena are drastically impaired by transverse magnetic fields, which readily cant $\\mathcal{PT}$-related magnetic sublattices. Accordingly, when the $\\mathcal{PT}$-related texture is weakly perturbed by longitudinal fields orienting along the sublattices, the localization is minutely affected. The robustness of the $\\mathcal{PT}$-enforced degeneracies is thus governed by exchange and magnetocrystalline interactions, in contrast to the exact $\\mathcal{PT}$-symmetry of the full Hamiltonian, which is broken by any finite field.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.06951",
  "author_total": 10,
  "authors": [
    {
      "name": "Kim-Khuong Huynh"
    },
    {
      "name": "Takuma Ogasawara"
    },
    {
      "name": "Motoi Kimata"
    },
    {
      "name": "Sofie Søby Leiszner"
    },
    {
      "name": "Nhu-Quynh Thi Phan"
    },
    {
      "name": "Michael Anthony Quintero"
    },
    {
      "name": "Frej Søren Rattenborg"
    },
    {
      "name": "Denis Arčon"
    },
    {
      "name": "Bo Brummerstedt Iversen"
    },
    {
      "name": "Katsumi Tanigaki"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f7rds6m6m7h8c.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.06951",
  "fulltext_url": null,
  "id": "f7rds6m6m7h8c",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.06951",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.dis-nn"
    ],
    [
      "arxiv",
      "cond-mat.other"
    ],
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "openalex",
      "3107|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W7221008626",
  "pdf_url": "https://arxiv.org/pdf/2610.06951",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/f7rds6m6m7h8c.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:22Z",
      "native_id": "2610.06951",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.06951"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.dis-nn",
      "subfield": "condensed-matter"
    }
  ],
  "title": "$\\mathcal{PT}$-symmetry as Effective Time Reversal Symmetry for Anderson Localization in a Collinear Antiferromagnet",
  "title_text": "𝒫𝒯-symmetry as Effective Time Reversal Symmetry for Anderson Localization in a Collinear Antiferromagnet",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:22Z",
  "url": "https://research.draconitic.com/paper/f7rds6m6m7h8c",
  "venue": "arXiv",
  "versions": []
}