{
  "abstract": "Single-mode squeezing of the electromagnetic vacuum is a key resource for mode-selective noise reduction in quantum measurements. At microwave frequencies, single-mode squeezing is typically obtained by using Josephson and Traveling-Wave Parametric Amplifiers designed for three-wave mixing operation. In single-pump degenerate four-wave mixing, the coincidence of pump, signal, and idler frequencies complicates separation of the squeezed field from the strong pump. A dual-pump configuration enables degenerate operation while keeping both pumps spectrally separated from the squeezed mode. Here, we demonstrate single-mode squeezing in a flux-tunable, dual-pump Traveling-Wave Parametric Amplifier, employing reversed-Kerr phase matching. By independently calibrating the single-pump gains, we find that the strongest squeezing occurs along approximately balanced-gain trajectories, while the optimal squeezing does not necessarily correspond to the highest dual-pump gain. At flux biases $Φ_\\mathrm{ext}/Φ_0 = 0.0$ and $0.5$, the minimum quadrature noise levels reach $-2.48 \\pm 0.18~\\mathrm{dB}$ and $-1.62 \\pm 0.20~\\mathrm{dB}$ relative to vacuum, respectively. These results establish the proposed architecture as a platform for single-mode squeezing in microwave continuous-variable quantum technologies.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.00934",
  "author_total": 5,
  "authors": [
    {
      "name": "Anna Levochkina"
    },
    {
      "name": "Kirill Petrovnin"
    },
    {
      "name": "Iiro Harju"
    },
    {
      "name": "Jiaming Wang"
    },
    {
      "name": "Gheorghe Sorin Paraoanu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/41c6tqxfk4et2.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.00934",
  "fulltext_url": null,
  "id": "41c6tqxfk4et2",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.00934",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2611.00934",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/41c6tqxfk4et2.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:59Z",
      "native_id": "2611.00934",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.00934"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Single-Mode Squeezing Using Degenerate Four-Wave Mixing in a Dual-Pump TWPA",
  "title_text": "Single-Mode Squeezing Using Degenerate Four-Wave Mixing in a Dual-Pump TWPA",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:18Z",
  "url": "https://research.draconitic.com/paper/41c6tqxfk4et2",
  "venue": "arXiv",
  "versions": []
}