{
  "abstract": "We present and experimentally validate the `Convolutional QFT': a constructive compilation strategy for the Quantum Fourier Transform (QFT) subroutine on a linear nearest neighbor (LNN) qubit topology. We first introduce a novel strategy that compiles the $n$-qubit QFT onto an LNN topology using only $n^2 - n$ $CX$ gates, matching requirements of a direct compilation on an all-to-all architecture. We then derive the convolutional variant used in our experiments, which requires an additional two $CX$ gates in total, and is realized via a compact, translation-invariant kernel circuit gadget that traverses a quantum register. We demonstrate the power of the convolutional compilation strategy on the IBM Quantum Platform by executing QFT benchmarking circuits. We measure a process fidelity of 11.4% at 50 qubits, and 1.8% at 80 qubits. The correct output state remains clearly distinguishable above background noise up to 100 qubits. These results constitute the largest experimental QFT demonstrated on any quantum computing hardware to date.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.05435",
  "author_total": 3,
  "authors": [
    {
      "name": "Paul Coote"
    },
    {
      "name": "Michael J. Biercuk"
    },
    {
      "name": "Yuval Baum"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4ffvv47vyx8gj.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.05435",
  "fulltext_url": null,
  "id": "4ffvv47vyx8gj",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.05435",
  "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": "W7201834450",
  "pdf_url": "https://arxiv.org/pdf/2608.05435",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4ffvv47vyx8gj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:31Z",
      "native_id": "2608.05435",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.05435"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Experimental demonstration of the Quantum Fourier Transform on up to 100 qubits using a convolutional compilation strategy",
  "title_text": "Experimental demonstration of the Quantum Fourier Transform on up to 100 qubits using a convolutional compilation strategy",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:31Z",
  "url": "https://research.draconitic.com/paper/4ffvv47vyx8gj",
  "venue": "arXiv",
  "versions": []
}