{
  "abstract": "Topology under non-Hermitian dynamics is encoded in the phase of the bulk evolution, yet strong dissipation suppresses the amplitudes carrying it. We resolve this using a programmable photonic integrated circuit that implements such dynamics in synthetic momentum space through unitary dilation, with the phase recovered by phase-shifted interferometry. For the non-Hermitian Su-Schrieffer-Heeger model, the method distinguishes trivial and non-trivial Zak phases and yields a coherence winding $q=\\pm 1$ induced by an exceptional point. Extending to a synthetic torus via a Rice-Mele pump gives the first Chern number $\\mathrm{Ch}_1=0,1$ for trivial and non-trivial cycles, showing a programmable route to momentum-space topology under strongly dissipative non-Hermitian dynamics.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Physical Review Letters 2026",
  "arxiv": "2609.38352",
  "author_total": 5,
  "authors": [
    {
      "name": "Andrea Cataldo"
    },
    {
      "name": "Emil J. Bergholtz"
    },
    {
      "name": "Daniel Leykam"
    },
    {
      "name": "Jun Gao"
    },
    {
      "name": "Ali W. Elshaari"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/26h6p8bg0xnt8.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.38352",
  "fulltext_url": null,
  "id": "26h6p8bg0xnt8",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.38352",
  "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.mes-hall"
    ],
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.38352",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/26h6p8bg0xnt8.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2609.38352",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.38352"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Interferometric Readout of Momentum-Space Topology in a Programmable Dissipative Photonic Circuit",
  "title_text": "Interferometric Readout of Momentum-Space Topology in a Programmable Dissipative Photonic Circuit",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/26h6p8bg0xnt8",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/xkht-64kc",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}