{
  "abstract": "At fixed bulk criticality, every fixed nonsingular real single-end potential preserves a growing local population of real eigenvalues in an open analytic family of non-Hermitian chains. An open region of two-end real potentials removes this population. A boundary-amplitude criterion fixes the minimum number of controlled ends. The population grows as $\\sqrt N$, where $N$ is chain length, although its normalized spectral weight vanishes and the local limiting bands remain unchanged. For a representative chain's four zero-detuning settings, an independent passive Hermitian double chain converts this distinction into separated resonances at one fixed local port under a common coupling scan at fixed probe carrier. Its absolute reflection contrast and stability margin both scale as $N^{-1}$, with explicit sufficient resource budgets. Boundary amplitudes thus fix a minimum control requirement that limiting bands and thermodynamic spectral density do not specify.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.19061",
  "author_total": 4,
  "authors": [
    {
      "name": "Chengxi Li"
    },
    {
      "name": "Hao Zhu"
    },
    {
      "name": "Tie-Fu Zhang"
    },
    {
      "name": "Wanzi Sun"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/64gcg8v1abz49.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.19061",
  "fulltext_url": null,
  "id": "64gcg8v1abz49",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.19061",
  "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"
    ],
    [
      "openalex",
      "3107|Quantum Mechanics and Non-Hermitian Physics"
    ]
  ],
  "openalex": "W7221930345",
  "pdf_url": "https://arxiv.org/pdf/2610.19061",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/64gcg8v1abz49.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:50Z",
      "native_id": "2610.19061",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.19061"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Cooperative Boundary Switching of Mesoscopic Real Spectra in a Non-Hermitian Chain Family",
  "title_text": "Cooperative Boundary Switching of Mesoscopic Real Spectra in a Non-Hermitian Chain Family",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:50Z",
  "url": "https://research.draconitic.com/paper/64gcg8v1abz49",
  "venue": "arXiv",
  "versions": []
}