{
  "abstract": "We investigate reentrant topology in a one-dimensional Su--Schrieffer--Heeger chain with integer-power quasiperiodically modulated intracell hopping. The modulation is controlled by a positive integer exponent $n$ and a tunable parameter $β$, which interpolates between a smooth integer-power quasiperiodic profile and a sign-function limit. Combining the zero-mode inverse-localization-length criterion with a real-space topological indicator, we determine the phase diagrams in the $β\\to0$, $β\\to\\infty$, and finite-$β$ regimes. We find an even--odd classification of reentrant topological windows governed by the dc component and support of the full modulation profile. For positive modulation strength, odd powers yield a zero-mean sign-changing profile and can induce reentrance from the clean trivial regime $|t_1|>1$, whereas even powers yield a positive-mean non-negative profile and allow reentrance only from the negative clean trivial regime $t_1<-1$. Although even-power profiles contain sign-changing fluctuations after subtracting their positive average, the full modulation profile remains non-negative. This even--odd structure of the full modulation profile provides a control knob for topological Anderson-like reentrant phases. We further discuss the associated bulk localization properties and show that the phase diagrams are robust against moderate hopping fluctuations, suggesting a feasible realization in electrical circuits.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Physica A 700 (2026) 131949",
  "arxiv": "2605.00543",
  "author_total": 3,
  "authors": [
    {
      "name": "Yusheng Niu"
    },
    {
      "name": "Hui Liu"
    },
    {
      "name": "Zhihao Xu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3vkf9wes384xe.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.00543",
  "fulltext_url": null,
  "id": "3vkf9wes384xe",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.00543",
  "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"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2605.00543",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3vkf9wes384xe.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:16Z",
      "native_id": "2605.00543",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.00543"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.dis-nn",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Even--odd classification of reentrant topology in a Su--Schrieffer--Heeger chain with integer-power quasiperiodic hopping",
  "title_text": "Even--odd classification of reentrant topology in a Su--Schrieffer--Heeger chain with integer-power quasiperiodic hopping",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:16Z",
  "url": "https://research.draconitic.com/paper/3vkf9wes384xe",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1016/j.physa.2026.131949",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}