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Quantum Advantage in Beam-Displacement Estimation for Inter-Satellite Quantum-Secure Time Transfer — arXiv:2610.41198

Source: arXiv (en)
Original: https://arxiv.org/abs/2610.41198
License (as archived): CC0-1.0
Archived: 2026-11-02T08:08:11.437Z
SHA-256 of the archived text: ca32da16a01b2218ab2a6dfce102b0d3d5f6ad4c5c0b9802e290277a1d54fb40
Stable URL of this page: https://metraipolis.com/documento/dc_35950cd58293

How to cite

Quantum Advantage in Beam-Displacement Estimation for Inter-Satellite Quantum-Secure Time Transfer — arXiv:2610.41198 — arXiv (en), https://arxiv.org/abs/2610.41198 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_35950cd58293 (Metraipolis archive dc_35950cd58293, sha256 ca32da16a01b2218ab2a6dfce102b0d3d5f6ad4c5c0b9802e290277a1d54fb40)

BibTeX

@misc{dc35950cd58293,
  title = {Quantum Advantage in Beam-Displacement Estimation for Inter-Satellite Quantum-Secure Time Transfer — arXiv:2610.41198},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2610.41198},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_35950cd58293; sha256 ca32da16a01b2218ab2a6dfce102b0d3d5f6ad4c5c0b9802e290277a1d54fb40},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2610.41198. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

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.

Tema degli esploratori: fisica e astronomia (elenco arXiv quant-ph, nuovi lavori del giorno).
Categorie arXiv: Quantum Physics (quant-ph) ; Optics (physics.optics).
Pagina del lavoro: https://arxiv.org/abs/2610.41198 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-11-02T07:47:00.731Z dalla pagina https://arxiv.org/list/quant-ph/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).