Drive-Only Interaction Engineering via Dynamical Freezing
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Quantum Physics arXiv:2605.19114 (quant-ph) [Submitted on 18 May 2026] Title:Drive-Only Interaction Engineering via Dynamical Freezing Authors:Songbo Xie, Jiheng Duan, Sabre Kais View a PDF of the paper titled Drive-Only Interaction Engineering via Dynamical Freezing, by Songbo Xie and Jiheng Duan and Sabre Kais View PDF HTML (experimental) Abstract:Freezing is usually used to suppress unwanted dynamics, but it can also be used to engineer interactions. We introduce freezing-induced interaction engineering, a drive-only control paradigm in which dynamically freezing an auxiliary subsystem reshapes the effective Hamiltonian of the remaining degrees of freedom. As a concrete realization, we consider a three-qubit architecture where a driven modulator $M$ is coupled to one of two target qubits, $Q_1$, while $Q_1$ and $Q_2$ retain a fixed native exchange-type interaction. When $M$ is frozen in a dressed eigenstate, its projection renormalizes the local Hamiltonian of $Q_1$. This makes the dressed-frame detuning between $Q_1$ and $Q_2$ controllable by the drive frequency. The native interaction can then be switched between two regimes: an interaction-off regime with large dressed-frame detuning, and an interaction-on regime with resonant exchange. In the interaction-on regime, the protocol realizes an iSWAP gate using the native $Q_1Q_2$ coupling. Full lab-frame simulations show high-fidelity iSWAP dynamics and strong interaction suppression in the interaction-off regime. By combining native-coupling gate speed with drive-only operational simplicity, freezing-induced interaction engineering provides a route toward fast, drive-controlled entangling gates in fixed-frequency quantum architectures. Comments: Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2605.19114 [quant-ph] (or arXiv:2605.19114v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2605.19114 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Songbo Xie [view email] [v1] Mon, 18 May 2026 21:01:12 UTC (474 KB) Full-text links: Access Paper: View a PDF of the paper titled Drive-Only Interaction Engineering via Dynamical Freezing, by Songbo Xie and Jiheng Duan and Sabre KaisView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2026-05 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?)