{
  "abstract": "We study the noisy dynamics of periodically driven, discrete-step quantum walks in a one-dimensional photonic lattice. We find that in the bulk, temporal noise that is constant within a Floquet period leads to decoherence-free momentum subspaces, whereas fully random noise destroys coherence in a few time steps. When considering topological edge states, we observe decoherence no matter the type of temporal noise. To explain these results, we derive a nonperturbative master equation to describe the system's dynamics. We experimentally confirm our findings in a time multiplexed photonic lattice implemented in a double-fiber ring setup subject to laser pulse input states, in which we engineer different types of temporal noise.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2510.16204",
  "author_total": 4,
  "authors": [
    {
      "name": "Rajesh Asapanna"
    },
    {
      "name": "Clément Hainaut"
    },
    {
      "name": "Alberto Amo"
    },
    {
      "name": "Álvaro Gómez-León"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0gt5dmbwht81h.bib",
  "cited_by": 0,
  "doi": "10.1103/dxjw-bmng",
  "fulltext_url": null,
  "id": "0gt5dmbwht81h",
  "issns": [
    "2469-9926",
    "2469-9934"
  ],
  "landing_url": "https://hal.science/hal-05761659v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.phys"
    ],
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      "hal",
      "1.phys.cond"
    ],
    [
      "hal",
      "1.phys.phys"
    ],
    [
      "hal",
      "1.phys.qphy"
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      "hal",
      "2.phys.cond.cm-ds-nn"
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    [
      "hal",
      "2.phys.phys.phys-optics"
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    [
      "openalex",
      "1702|Quantum Computing Algorithms and Architecture"
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  "openalex": "W4415950428",
  "pdf_url": "https://hal.science/hal-05761659/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": "American Physical Society",
  "ris": "https://research.draconitic.com/paper/0gt5dmbwht81h.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:39Z",
      "native_id": "hal-05761659",
      "source": "hal",
      "url": "https://hal.science/hal-05761659v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:1.phys.cond",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "hal:2.phys.phys.phys-optics",
      "subfield": "optics-photonics"
    },
    {
      "field": "physics",
      "origin": "hal:1.phys.qphy",
      "subfield": "quantum"
    }
  ],
  "title": "Decoherence-free subspaces in the noisy dynamics of discrete-step quantum walks in a photonic lattice",
  "title_text": "Decoherence-free subspaces in the noisy dynamics of discrete-step quantum walks in a photonic lattice",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:39Z",
  "url": "https://research.draconitic.com/paper/0gt5dmbwht81h",
  "venue": "Physical Review A",
  "versions": []
}