{
  "abstract": "Port-based teleportation (PBT) is a variant of quantum teleportation that does not require corrections on the teleported state: starting with $N$ shared EPR states, Alice can teleport a qudit to Bob by performing a measurement on her system and informing Bob which of his $N$ `ports' to retrieve the state, up to infidelity decaying with $N$. Existing efficient quantum circuits of PBT rely on representation theory tools such as the Schur transform. In this note, we report an elementary efficient circuit for PBT, which has depth $\\operatorname{polylog}(N,d)$. As a corollary, this gives a simple proof that all $n$-qubit unitaries can be parallelized to $\\operatorname{poly}(n)$ depth, recovering a recent result due to Nehoran--Slote--Yuen and OpenAI.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.30761",
  "author_total": 2,
  "authors": [
    {
      "name": "Anurag Anshu"
    },
    {
      "name": "Quynh T. Nguyen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/an7x4zj8kk0ek.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.30761",
  "fulltext_url": null,
  "id": "an7x4zj8kk0ek",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.30761",
  "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",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Computing Algorithms and Architecture"
    ]
  ],
  "openalex": "W7223362959",
  "pdf_url": "https://arxiv.org/pdf/2610.30761",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/an7x4zj8kk0ek.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:22Z",
      "native_id": "2610.30761",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.30761"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "A simple proof of unitary parallelization via port-based teleportation",
  "title_text": "A simple proof of unitary parallelization via port-based teleportation",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:44Z",
  "url": "https://research.draconitic.com/paper/an7x4zj8kk0ek",
  "venue": "arXiv",
  "versions": []
}