{
  "abstract": "In this work, we investigate the practical feasibility of achieving a quantum advantage, in the context of inter-satellite quantum communication, of satellite position estimation. The investigation focuses on a quantum-enhanced scheme in which squeezing is added to the derivative mode of a Gaussian probe beam as a means of estimating photon-beam displacement. The performance of the scheme is compared against the standard quantum limit achieved by an optimal classical beam-displacement estimation scheme under a fair same-total-energy constraint. We find that although the benefit provided by squeezing rapidly diminishes as the inter-satellite distance increases due to diffraction-induced beam spreading and subsequent truncation by the finite receiver aperture, a quantum advantage can still be expected over inter-satellite distances up to approximately 100 km under practical satellite configurations. This distance scale between satellites is anticipated for Starlink-type satellite constellations.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.41198",
  "author_total": 2,
  "authors": [
    {
      "name": "Ziqing Wang"
    },
    {
      "name": "Robert Malaney"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1j24vmc0m0w0e.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.41198",
  "fulltext_url": null,
  "id": "1j24vmc0m0w0e",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.41198",
  "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",
      "physics.optics"
    ],
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.41198",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1j24vmc0m0w0e.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:21:15Z",
      "native_id": "2610.41198",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.41198"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Quantum Advantage in Beam-Displacement Estimation for Inter-Satellite Quantum-Secure Time Transfer",
  "title_text": "Quantum Advantage in Beam-Displacement Estimation for Inter-Satellite Quantum-Secure Time Transfer",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:51Z",
  "url": "https://research.draconitic.com/paper/1j24vmc0m0w0e",
  "venue": "arXiv",
  "versions": []
}