{
  "abstract": "A graphene slit junction is investigated as a compact geometry for directional electron-beam formation, coherent interference, and symmetry-controlled spin filtering. Atomistic tight-binding calculations combined with the nonequilibrium Green's function formalism show that trigonal warping in monolayer graphene produces strongly directional electron beams near E~2.7eV. Boundary reflections redirect these beams toward a common drain, where the transmission exhibits magnetic flux-dependent oscillations consistent with an h/e Aharonov-Bohm period, whose modulation is characterized by Fourier analysis and harmonic fitting. A local electrostatic gate provides additional control of the interference phase. In separate self-consistent mean-field Hubbard calculations, the pristine antiferromagnetic ground state is shown to have spin-degenerate transmission, whereas structural or electrostatic breaking of the left-right symmetry enables spin filtering. Complementary valley-resolved calculations using a four-band continuum model demonstrate analogous beam formation in bilayer graphene at E = 50meV. The results identify the slit junction as a common geometry for electron-optical and spin-dependent transport and motivate further investigation of low-energy bilayer implementations.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.00768",
  "author_total": 3,
  "authors": [
    {
      "name": "Mohamed Amine Rhanbouri"
    },
    {
      "name": "Wojciech Julian Pasek"
    },
    {
      "name": "Abdelouahed El Fatimy"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c1gkz3ky7h5zp.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.00768",
  "fulltext_url": null,
  "id": "c1gkz3ky7h5zp",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.00768",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "openalex",
      "2505|Graphene research and applications"
    ]
  ],
  "openalex": "W7215991711",
  "pdf_url": "https://arxiv.org/pdf/2610.00768",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c1gkz3ky7h5zp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:26:03Z",
      "native_id": "2610.00768",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.00768"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Tunable Electron Quantum Optics in Graphene Slit Junctions",
  "title_text": "Tunable Electron Quantum Optics in Graphene Slit Junctions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:26:03Z",
  "url": "https://research.draconitic.com/paper/c1gkz3ky7h5zp",
  "venue": "arXiv",
  "versions": []
}