Realizing topological edge states with Rydberg-atom synthetic dimensions

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dc.citation.articleNumber972
dc.citation.journalTitleNature Communications
dc.citation.volumeNumber13
dc.contributor.authorKanungo, S.K.
dc.contributor.authorWhalen, J.D.
dc.contributor.authorLu, Y.
dc.contributor.authorYuan, M.
dc.contributor.authorDasgupta, S.
dc.contributor.authorDunning, F.B.
dc.contributor.authorHazzard, K.R.A.
dc.contributor.authorKillian, T.C.
dc.contributor.orgRice Center for Quantum Materials
dc.date.accessioned2022-03-24T13:31:48Z
dc.date.available2022-03-24T13:31:48Z
dc.date.issued2022
dc.description.abstractA discrete degree of freedom can be engineered to match the Hamiltonian of particles moving in a real-space lattice potential. Such synthetic dimensions are powerful tools for quantum simulation because of the control they offer and the ability to create configurations difficult to access in real space. Here, in an ultracold 84Sr atom, we demonstrate a synthetic-dimension based on Rydberg levels coupled with millimeter waves. Tunneling amplitudes between synthetic lattice sites and on-site potentials are set by the millimeter-wave amplitudes and detunings respectively. Alternating weak and strong tunneling in a one-dimensional configuration realizes the single-particle Su-Schrieffer-Heeger (SSH) Hamiltonian, a paradigmatic model of topological matter. Band structure is probed through optical excitation from the ground state to Rydberg levels, revealing symmetry-protected topological edge states at zero energy. Edge-state energies are robust to perturbations of tunneling-rates that preserve chiral symmetry, but can be shifted by the introduction of on-site potentials.
dc.identifier.citationKanungo, S.K., Whalen, J.D., Lu, Y., et al.. "Realizing topological edge states with Rydberg-atom synthetic dimensions." <i>Nature Communications,</i> 13, (2022) Springer Nature: https://doi.org/10.1038/s41467-022-28550-y.
dc.identifier.digitals41467-022-28550-y
dc.identifier.doihttps://doi.org/10.1038/s41467-022-28550-y
dc.identifier.urihttps://hdl.handle.net/1911/112060
dc.language.isoeng
dc.publisherSpringer Nature
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleRealizing topological edge states with Rydberg-atom synthetic dimensions
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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