Quantum information scrambling in two-dimensional Bose-Hubbard lattices

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dc.contributor.authorTripathy, Devjyoti
dc.contributor.authorTouil, Akram
dc.contributor.authorGardas, Bartłomiej
dc.contributor.authorDeffner, Sebastian
dc.date.accessioned2024-02-05T22:13:02Z
dc.date.available2024-02-05T22:13:02Z
dc.date.issued2024-04-05
dc.description.abstractIt is a well-understood fact that the transport of excitations throughout a lattice is intimately governed by the underlying structures. Hence, it is only natural to recognize that also the dispersion of information has to depend on the lattice geometry. In the present work, we demonstrate that two-dimensional lattices described by the Bose-Hubbard model exhibit information scrambling for systems as little as two hexagons. However, we also find that the OTOC shows the exponential decay characteristic for quantum chaos only for a judicious choice of local observables. More generally, the OTOC is better described by Gaussian-exponential convolutions, which alludes to the close similarity of information scrambling and decoherence theory.
dc.description.sponsorshipS.D. acknowledges support from the U.S. National Science Foundation under Grant No. DMR-2010127 and the John Templeton Foundation under Grant No. 62422. B.G. acknowledges support from the National Science Center (NCN), Poland, under Project Sonata Bis 10, No. 2020/38/E/ST3/00269. A.T. acknowledges support from the U.S DOE under the LDRD program at Los Alamos
dc.description.urihttps://pubs.aip.org/aip/cha/article-abstract/34/4/043121/3281111/Quantum-information-scrambling-in-two-dimensional?redirectedFrom=fulltext
dc.format.extent9 pages
dc.genrejournal articles
dc.genrepreprints
dc.identifier.citationTripathy, Devjyoti, Akram Touil, Bartłomiej Gardas, and Sebastian Deffner. “Quantum Information Scrambling in Two-Dimensional Bose–Hubbard Lattices.” Chaos: An Interdisciplinary Journal of Nonlinear Science 34, no. 4 (April 5, 2024): 043121. https://doi.org/10.1063/5.0199335.
dc.identifier.urihttps://doi.org/10.1063/5.0199335
dc.identifier.urihttp://hdl.handle.net/11603/31559
dc.language.isoen
dc.publisherAIP
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Student Collection
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Physics Department Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rights.urihttps://creativecommons.org/publicdomain/mark/1.0/
dc.titleQuantum information scrambling in two-dimensional Bose-Hubbard lattices
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0003-0504-6932

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