Dressed-state Hamiltonian engineering in a strongly interacting solid-state spin ensemble
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Quantum Physics arXiv:2512.09043 (quant-ph) [Submitted on 9 Dec 2025] Title:Dressed-state Hamiltonian engineering in a strongly interacting solid-state spin ensemble Authors:Haoyang Gao, Nathaniel T. Leitao, Siddharth Dandavate, Lillian B. Hughes Wyatt, Piotr Put, Mathew Mammen, Leigh S. Martin, Hongkun Park, Ania C. Bleszynski Jayich, Mikhail D. Lukin View a PDF of the paper titled Dressed-state Hamiltonian engineering in a strongly interacting solid-state spin ensemble, by Haoyang Gao and 9 other authors View PDF Abstract:In quantum science applications, ranging from many-body physics to quantum metrology, dipolar interactions in spin ensembles are controlled via Floquet engineering. However, this technique typically reduces the interaction strength between spins, and effectively weakens the coupling to a target sensing field, limiting the metrological sensitivity. In this work, we develop and demonstrate a method for direct tuning of the native interaction in an ensemble of nitrogen-vacancy (NV) centers in diamond. Our approach utilizes dressed-state qubit encoding under a magnetic field perpendicular to the crystal lattice orientation. This method leads to a $3.2\times$ enhancement of the dimensionless coherence parameter $JT_2$ compared to state-of-the-art Floquet engineering, and a $2.6\times$ ($8.3~$dB) enhanced sensitivity in AC magnetometry. Utilizing the extended coherence we experimentally probe spin transport at intermediate to late times. Our results provide a powerful Hamiltonian engineering tool for future studies with NV ensembles and other interacting higher-spin ($S>\frac{1}{2}$) systems. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2512.09043 [quant-ph] (or arXiv:2512.09043v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2512.09043 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Haoyang Gao [view email] [v1] Tue, 9 Dec 2025 19:01:03 UTC (2,510 KB) Full-text links: Access Paper: View a PDF of the paper titled Dressed-state Hamiltonian engineering in a strongly interacting solid-state spin ensemble, by Haoyang Gao and 9 other authorsView PDFTeX Source view license Ancillary-file links: Ancillary files (details): SI.pdf Current browse context: quant-ph new | recent | 2025-12 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?)