{
  "abstract": "Quantum batteries have been proposed as locally precharged work sources for superconducting quantum technologies, suggesting a route to reduce continuously supplied microwave drives. Here we ask what a finite bosonic pump must provide to replace the pump tone of a nondegenerate parametric amplifier during a readout window. Quantizing the pump exposes a resource distinction hidden in the classical description: stored energy and the ordinary marginal signal response can survive pump phase twirling, whereas a reproducible phase-locked signal-idler field requires pump coherences in the number sectors coupled by the mixing process. In a closed trilinear model, a coherent pump and its number-matched phase-twirled counterpart generate the same number-like marginal observables, but only the coherent pump produces anomalous two-mode coherence and an EPR-squeezed interference dip. Including leakage, we collect the emitted fields into cascaded temporal modes. At matched collector bandwidth, the coherent pump gives the interference certifier I min ( f ) = 0.553 , whereas the phase-randomized control gives I min ( f ) ≃ 1.94 . A weak seeded-signal analysis shows more sharply that an exact pump phase twirl leaves the collected signal marginal invariant by phase covariance while eliminating the anomalous signal-idler coherence. A finite-cutoff scan also indicates that weak amplitude squeezing can modestly deepen the phase-sensitive dip by reducing pump-number fluctuations while preserving most of the coherent displacement. Thus, for the three-wave-mixing pump families studied here, adjacent-number pump coherence is the resource that establishes a phase-locked joint amplifier field, rather than a prerequisite for energy transfer or ordinary marginal signal response.",
  "abstract_shown": true,
  "affiliations": [
    "University of Gdańsk"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Borhan Ahmadi",
      "orcid": "0000-0002-2787-9321"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8yfqxdgr8yrfa.bib",
  "cited_by": 0,
  "doi": "10.1088/1367-2630/aeb4e6",
  "fulltext_url": null,
  "id": "8yfqxdgr8yrfa",
  "issns": [
    "1367-2630"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.1088/1367-2630/aeb4e6",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "feed-journal",
      "physics/general"
    ],
    [
      "openalex",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7222128732",
  "pdf_url": "https://iopscience.iop.org/article/10.1088/1367-2630/aeb4e6/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": "IOP Publishing",
  "ris": "https://research.draconitic.com/paper/8yfqxdgr8yrfa.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:19Z",
      "native_id": "10.1088/1367-2630/aeb4e6",
      "source": "feed-iop",
      "url": "https://iopscience.iop.org/article/10.1088/1367-2630/aeb4e6"
    },
    {
      "first_seen": "2026-10-30T12:17:56Z",
      "native_id": "10.1088/1367-2630/aeb4e6",
      "source": "crossref",
      "url": "https://iopscience.iop.org/article/10.1088/1367-2630/aeb4e6"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "journal-openalex:3107|Quantum Mechanics and Applications",
      "subfield": "amo"
    }
  ],
  "title": "Finite quantum pumps for phase-locked parametric amplification: requirements for quantum-battery work sources",
  "title_text": "Finite quantum pumps for phase-locked parametric amplification: requirements for quantum-battery work sources",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:56Z",
  "url": "https://research.draconitic.com/paper/8yfqxdgr8yrfa",
  "venue": "New Journal of Physics",
  "versions": [
    {
      "doi": "10.48550/arxiv.2606.20306",
      "pid": "b4tady6z7bxg4",
      "relation": "preprint",
      "title": "Quantum Batteries as Work Sources for Phase-Locked Parametric Amplification",
      "venue": "arXiv"
    }
  ]
}