{
  "abstract": "Quantum nanoelectronics is pushing towards ever higher operating frequencies in order to realise quantum technologies capable of processing information at unprecedented speeds. A particularly promising direction is the development of flying electron qubits, which offer the prospect of quantum operations on picosecond timescales. Achieving in-flight quantum control in this regime would establish a fundamentally new paradigm for studying quantum entanglement and enable a novel form of quantum information processing based on propagating electronic wavepackets. Here we report a first step towards this goal by injecting ultrashort electron wavepackets into an engineered quantum nanoelectronic device. We demonstrate active control over the propagation speed of an electron wavepacket with a temporal duration as short as 4 ps in a quasi-one-dimensional electron waveguide with a length ranging from 10 $\\mathrmμ$m to 40 $\\mathrmμ$m. This advance provides a key building block for ultrafast quantum operations using flying electrons. Beyond its technological implications, our approach offers a platform for exploring the intrinsic dynamical processes that govern quantum transport and coherence in nanoscale electronic systems.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.28224",
  "author_total": 17,
  "authors": [
    {
      "name": "Thomas Vasselon"
    },
    {
      "name": "Uzer Ahmad"
    },
    {
      "name": "Clément Geffroy"
    },
    {
      "name": "Lucas Mazzella"
    },
    {
      "name": "Matteo Aluffi"
    },
    {
      "name": "Seddik Ouacel"
    },
    {
      "name": "Jashwanth Shaju"
    },
    {
      "name": "Kevin Bredillet"
    },
    {
      "name": "Nathan Roussel"
    },
    {
      "name": "Jean-François Roux"
    },
    {
      "name": "Pierre-Baptiste Vigneron"
    },
    {
      "name": "Arne Ludwig"
    },
    {
      "name": "Andreas D. Wieck"
    },
    {
      "name": "Matias Urdampilleta"
    },
    {
      "name": "Hermann Sellier"
    },
    {
      "name": "Giorgos Georgiou"
    },
    {
      "name": "Christopher Bäuerle"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4bdbqhn8ah7na.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.28224",
  "fulltext_url": null,
  "id": "4bdbqhn8ah7na",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.28224",
  "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|Quantum and electron transport phenomena"
    ]
  ],
  "openalex": "W7214234166",
  "pdf_url": "https://arxiv.org/pdf/2609.28224",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4bdbqhn8ah7na.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2609.28224",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.28224"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Active control of THz plasmon propagation in a one-dimensional electronic waveguide",
  "title_text": "Active control of THz plasmon propagation in a one-dimensional electronic waveguide",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/4bdbqhn8ah7na",
  "venue": "arXiv",
  "versions": []
}