{
  "abstract": "We propose a purely optical Floquet framework to dynamically generate moiré-like superlattices and quasicrystalline potentials in a gapped Dirac material, entirely bypassing the need for physical twisting. The interference of three coherent circularly polarized beams produces a triangular, valley-dependent Floquet mass landscape that folds the Dirac spectrum into a mini-Brillouin zone, driving pronounced valley-selective miniband reconstruction. We further show that the bands near the Fermi level undergo a light-driven topological phase transition. Remarkably, interfering five or seven beams yields non-crystallographic spatial patterns, giving rise to optical quasicrystals with similar valley contrasting features. Although this purely optical approach provides a versatile route to band engineering, reaching deep subwavelength modulation requires overcoming the free-space diffraction limit. To overcome this limitation, we consider highly confined, linearly polarized surface plasmon polariton fields with controlled relative phases. Their phase-controlled interference generates a spatially alternating chiral mass with zero spatial average. Consequently, the two valleys exhibit degenerate energy spectra while hosting opposite valley-resolved miniband Chern numbers. Our findings establish a reconfigurable, all-optical platform for dynamically engineering moiré-like bands, quasicrystalline electronic states, and valley-dependent topology without mechanical twisting.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.28293",
  "author_total": 5,
  "authors": [
    {
      "name": "Evelyn P. Sinaga"
    },
    {
      "name": "Rizky Setiawan"
    },
    {
      "name": "Herri Trilaksana"
    },
    {
      "name": "Lukas P. A. Krisna"
    },
    {
      "name": "Eddwi H. Hasdeo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9szf7w4jwrjgd.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.28293",
  "fulltext_url": null,
  "id": "9szf7w4jwrjgd",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.28293",
  "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"
    ],
    [
      "openalex",
      "3107|Topological Materials and Phenomena"
    ]
  ],
  "openalex": "W7214200241",
  "pdf_url": "https://arxiv.org/pdf/2609.28293",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9szf7w4jwrjgd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2609.28293",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.28293"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Dynamic moiré-like band modulation in Dirac materials via multi-beam optical interference",
  "title_text": "Dynamic moiré-like band modulation in Dirac materials via multi-beam optical interference",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/9szf7w4jwrjgd",
  "venue": "arXiv",
  "versions": []
}