Chip scale superconducting quantum gravimeter based on a SQUID transmon mechanical resonator

Quantum Physics arXiv:2601.00425 (quant-ph) [Submitted on 1 Jan 2026] Title:Chip scale superconducting quantum gravimeter based on a SQUID transmon mechanical resonator Authors:Salman Sajad Wani, Mughees Ahmed Khan, Abrar Ahmed Naqash, Saif Al-Kuwari View a PDF of the paper titled Chip scale superconducting quantum gravimeter based on a SQUID transmon mechanical resonator, by Salman Sajad Wani and 3 other authors View PDF HTML (experimental) Abstract:Precise gravitational measurements are vital for geophysics and inertial navigation, but current platforms struggle to combine absolute accuracy with high-bandwidth tracking. We address this challenge with a chip-scale superconducting gravimeter that couples a flux-tunable transmon qubit to a high-$Q$ mechanical resonator. We embed the mechanical element inside the qubit's SQUID loop. This allows us to exploit the Josephson potential's nonlinearity, creating a motion-dependent inductance that maps gravitational displacement onto the qubit's geometric phase. Using a stroboscopic measurement protocol, we suppress mechanical decoherence at revival times. This yields a predicted sensitivity of $10^2\,\mathrm{nGal}/\sqrt{\mathrm{Hz}}$, approaching the performance of atomic sensors but with kilohertz-rate sampling. With electrical {in situ} tunability and SI traceability via microwave spectroscopy, this architecture offers a practical route to high-speed, quantum-limited on-chip gravimetry. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2601.00425 [quant-ph] (or arXiv:2601.00425v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2601.00425 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Abrar Naqash Ahmed [view email] [v1] Thu, 1 Jan 2026 18:33:35 UTC (941 KB) Full-text links: Access Paper: View a PDF of the paper titled Chip scale superconducting quantum gravimeter based on a SQUID transmon mechanical resonator, by Salman Sajad Wani and 3 other authorsView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-01 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?) Links to Code Toggle Papers with Code (What is Papers with Code?) 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?)