{
  "abstract": "At a spatially uniform, in-plane-isotropic time boundary, the transverse displacement of a spatiotemporal optical vortex changes sign with its topological charge, despite a charge-independent conversion weight. Radial spectral filtering couples to the vortex phase while preserving identical converted spectral intensities for opposite charges. For a narrow scalar Gaussian spectrum, the displacement follows the logarithmic slope of the spectral weight and occurs with zero mean transverse momentum. In a finite pumped GaAs waveguide, unequal attenuation during extraction adds angular deflection. Independent Maxwell--Drude simulations test this extraction-induced response and give $\\pm42$~mrad before detector filtering. Calculated centroid traces at multiple planes separate propagation-induced drift from position offsets.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.24713",
  "author_total": 2,
  "authors": [
    {
      "name": "Chao Mei"
    },
    {
      "name": "Peilong Yang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9wjh7r2nkfvm9.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.24713",
  "fulltext_url": null,
  "id": "9wjh7r2nkfvm9",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.24713",
  "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",
      "physics.optics"
    ],
    [
      "openalex",
      "3107|Orbital Angular Momentum in Optics"
    ]
  ],
  "openalex": "W7223020245",
  "pdf_url": "https://arxiv.org/pdf/2610.24713",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9wjh7r2nkfvm9.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.24713",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.24713"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "Charge-Selective Displacement of Spatiotemporal Optical Vortices at a Spatially Uniform Time Boundary",
  "title_text": "Charge-Selective Displacement of Spatiotemporal Optical Vortices at a Spatially Uniform Time Boundary",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/9wjh7r2nkfvm9",
  "venue": "arXiv",
  "versions": []
}