{
  "abstract": "Measurement and classical randomness usually degrade coherence; controlling where and when a subsystem is monitored can instead make them a tunable resource. We introduce a photonic time-multiplexed quantum walk whose fast reconfigurability enables precise position measurements, allowing us to study this interplay in a hybrid quantum-classical pursuit problem: A quantum walker (lamb) evolves on a line while a classical pursuer (lion) performs a lazy random walk. Each lion trajectory drives a distinct coherent, norm-reducing evolution of the lamb, with capture implemented by measurements at the lion's positions; averaging over the recorded trajectories then synthesizes a decoherent process. Counterintuitively, increasing the lion's mobility does not monotonically suppress survival: over a broad range of hopping probabilities, the lamb survives better than against an immobile predator. Directly observing this local enhancement, we demonstrate a manifestly quantum feature aided rather than hindered by classical stochastic control.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.25844",
  "author_total": 13,
  "authors": [
    {
      "name": "P. Held"
    },
    {
      "name": "İ. Yalçınkaya"
    },
    {
      "name": "F. Pegoraro"
    },
    {
      "name": "J. Lammers"
    },
    {
      "name": "F. Schlue"
    },
    {
      "name": "K. Jiráková"
    },
    {
      "name": "S. Barkhofen"
    },
    {
      "name": "B. Brecht"
    },
    {
      "name": "M. Štefaňák"
    },
    {
      "name": "V. Potoček"
    },
    {
      "name": "A. Gábris"
    },
    {
      "name": "I. Jex"
    },
    {
      "name": "C. Silberhorn"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9aqt0swvdqa6y.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.25844",
  "fulltext_url": null,
  "id": "9aqt0swvdqa6y",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.25844",
  "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",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum Mechanics and Applications"
    ]
  ],
  "openalex": "W7214078257",
  "pdf_url": "https://arxiv.org/pdf/2609.25844",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9aqt0swvdqa6y.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:39Z",
      "native_id": "2609.25844",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.25844"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Quantum survival in hybrid pursuit dynamics - a lion chasing a lamb problem",
  "title_text": "Quantum survival in hybrid pursuit dynamics - a lion chasing a lamb problem",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:39Z",
  "url": "https://research.draconitic.com/paper/9aqt0swvdqa6y",
  "venue": "arXiv",
  "versions": []
}