Topological rejection of noise by quantum skyrmions

dc.contributor.authorOrnelas, Pedro
dc.contributor.authorForbes, Andrew
dc.contributor.authorde Mello Koch, Robert
dc.date.accessioned2025-04-10T08:11:29Z
dc.date.issued2025-03
dc.description.abstractAn open challenge in the context of quantum information processing and communication is improving the robustness of quantum information to environmental contributions of noise, a severe hindrance in real-world scenarios. Here, we show that quantum skyrmions and their nonlocal topological observables remain resilient to noise even as typical entanglement witnesses and measures of the state decay. This allows us to introduce the notion of digitization of quantum information based on our discrete topological quantum observables, foregoing the need for robustness of entanglement. We compliment our experiments with a full theoretical treatment that unlocks the quantum mechanisms behind the topological behavior, explaining why the topology leads to robustness. Our approach holds exciting promise for intrinsic quantum information resilience through topology, highly applicable to real-world systems such as global quantum networks and noisy quantum computers.
dc.description.submitterPM2025
dc.facultyFaculty of Science
dc.identifier0000-0003-2552-5586
dc.identifier0000-0001-8129-6242
dc.identifier.citationOrnelas, P., Nape, I., de Mello Koch, R. et al. Topological rejection of noise by quantum skyrmions. Nat Commun 16, 2934 (2025). https://doi.org/10.1038/s41467-025-58232-4
dc.identifier.issn2041-1723 (online)
dc.identifier.other10.1038/s41467-025-58232-4
dc.identifier.urihttps://hdl.handle.net/10539/44675
dc.journal.titleNature communications
dc.language.isoen
dc.publisherNature Research
dc.relation.ispartofseriesVol.16; a2934
dc.rights© 2025 The Authors. Open Access, This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
dc.schoolSchool of Physics
dc.subjectTECHNOLOGY::Engineering physics::Optical physics
dc.subjectQuantum information
dc.subject.primarysdgSDG-17: Partnerships for the goals
dc.titleTopological rejection of noise by quantum skyrmions
dc.typeArticle

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