Topological X-states in a quantum impurity model

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dc.contributor.authorCavalcante, M. F.
dc.contributor.authorBonança, Marcus V. S.
dc.contributor.authorMiranda, Eduardo
dc.contributor.authorDeffner, Sebastian
dc.date.accessioned2025-02-13T17:56:13Z
dc.date.available2025-02-13T17:56:13Z
dc.date.issued2025-01-26
dc.description.abstractTopological qubits are inherently resistant to noise and errors. However, experimental demonstrations have been elusive as their realization and control is highly complex. In the present work, we demonstrate the emergence of topological X-states in the long-time response of a locally perturbed quantum impurity model. The emergence of the double-qubit state is heralded by the lack of decay of the response function as well as the out-of-time order correlator signifying the trapping of excitations, and hence information in local edge modes.
dc.description.sponsorshipThis work was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil, through grant No. 200267/2023-0. M.V.S.B. acknowledges the support of CNPq, under Grant No. 304120/2022- 7. E.M. acknowledges the support of CNPq, under Grant No. 309584/2021-3. The work was also financed (M.V.S.B. and E.M.), in part, by the São Paulo Research Foundation (FAPESP), Brazil, Process Number 2022/15453-0. S.D. and M.F.C. acknowledge support from the John Templeton Foundation under Grant No. 62422.
dc.description.urihttp://arxiv.org/abs/2501.13914
dc.format.extent12 pages
dc.genrejournal articles
dc.genrepreprints
dc.identifierdoi:10.13016/m2qweo-u0qt
dc.identifier.urihttps://doi.org/10.48550/arXiv.2501.13914
dc.identifier.urihttp://hdl.handle.net/11603/37699
dc.language.isoen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Physics Department
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.subjectCondensed Matter - Strongly Correlated Electrons
dc.subjectQuantum Physics
dc.subjectUMBC Quantum Thermodynamics Group
dc.titleTopological X-states in a quantum impurity model
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0002-2003-078X
dcterms.creatorhttps://orcid.org/0000-0003-0504-6932

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