{
  "abstract": "We investigate how the long-range tail of dipole-dipole interactions modifies the dynamics of strongly interacting hard-core bosons in a one-dimensional lattice. In the nearest-neighbour model, large interactions generate an emergent Hilbert-space fragmentation into manifolds labelled by the number of nearest-neighbour bonds \\(N_{\\mathrm{NN}}\\). The dipolar tail has a non-monotonic effect on this fragmented dynamics as the interaction-to-tunnelling ratio \\(V/t\\) is increased. At intermediate \\(V/t\\), it enhances delocalisation relative to the nearest-neighbour model by reducing the energetic detuning between neighbouring \\(N_{\\mathrm{NN}}\\) manifolds and sustaining their hybridisation by hopping. At larger \\(V/t\\), the same tail lifts degeneracies within each manifold, beginning with the splitting associated with the next-nearest-neighbour bond number \\(N_{\\mathrm{NNN}}\\), and promotes intra-manifold localisation and Hilbert-space shattering. The competition between these two effects produces a crossover from a delocalising to a localising role of the dipolar tail, visible in the late-time spatial inhomogeneity. This crossover occurs for nearly all initial states considered and persists at different fillings. Transverse confinement strengthens the short-range part of the dipolar tail and shifts the crossover to lower \\(V/t\\), bringing it into the regime relevant to current experiments with magnetic atoms and polar molecules.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.18747",
  "author_total": 3,
  "authors": [
    {
      "name": "Sabhyata Gupta"
    },
    {
      "name": "Adith Sai Aramthottil"
    },
    {
      "name": "Luis Santos"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f8hfcf3m57r5w.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.18747",
  "fulltext_url": null,
  "id": "f8hfcf3m57r5w",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.18747",
  "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.quant-gas"
    ],
    [
      "openalex",
      "3107|Quantum many-body systems"
    ]
  ],
  "openalex": "W7221765468",
  "pdf_url": "https://arxiv.org/pdf/2610.18747",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/f8hfcf3m57r5w.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:11Z",
      "native_id": "2610.18747",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.18747"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "amo"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Competing delocalisation and localisation induced by the dipolar tail in fragmented lattice gases",
  "title_text": "Competing delocalisation and localisation induced by the dipolar tail in fragmented lattice gases",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:11Z",
  "url": "https://research.draconitic.com/paper/f8hfcf3m57r5w",
  "venue": "arXiv",
  "versions": []
}