Enhanced phase estimation with coherently boosted two-mode squeezed beams and its application to optical gyroscopes

Quantum Physics arXiv:2607.05732 (quant-ph) [Submitted on 7 Jul 2026] Title:Enhanced phase estimation with coherently boosted two-mode squeezed beams and its application to optical gyroscopes Authors:Xiao-Qi Xiao, Elisha S. Matekole, Jiankang Zhao, Guihua Zeng, Jonathan P. Dowling, Hwang Lee View a PDF of the paper titled Enhanced phase estimation with coherently boosted two-mode squeezed beams and its application to optical gyroscopes, by Xiao-Qi Xiao and 5 other authors View PDF HTML (experimental) Abstract:Quantum techniques, developed in recent decades, provide new approaches to achieving high-precision measurements beyond the classical bounds. In this paper, we theoretically demonstrate a metrology method for improving the sensitivity of the interferometric optical gyroscope, robust against the loss, by using coherent-light stimulated two-mode squeezed beams as the light source. The detection protocol is based on a simple intensity measurement, and the quantum noise is far below the shot-noise limit. The enhancement factors for different coherent light fields are analyzed in detail. Additionally, the influence of loss during the propagation in the optical path is studied, and the conditions for achieving sub-shot-noise measurement sensitivity are obtained. We also find that the phase sensitivity of the proposed gyroscope scheme becomes closer to the quantum Cramér-Rao bound with increasing of the photon number of the coherent beams. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2607.05732 [quant-ph] (or arXiv:2607.05732v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2607.05732 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Journal reference: Phys. Rev. A 102, 022614 (2020) Related DOI: https://doi.org/10.1103/PhysRevA.102.022614 Focus to learn more DOI(s) linking to related resources Submission history From: Xiaoqi Xiao [view email] [v1] Tue, 7 Jul 2026 01:37:10 UTC (480 KB) Full-text links: Access Paper: View a PDF of the paper titled Enhanced phase estimation with coherently boosted two-mode squeezed beams and its application to optical gyroscopes, by Xiao-Qi Xiao and 5 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-07 References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)