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dc.contributor.authorBraumüller, Jochen
dc.contributor.authorKaramlou, Amir H
dc.contributor.authorYanay, Yariv
dc.contributor.authorKannan, Bharath
dc.contributor.authorKim, David
dc.contributor.authorKjaergaard, Morten
dc.contributor.authorMelville, Alexander
dc.contributor.authorNiedzielski, Bethany M
dc.contributor.authorSung, Youngkyu
dc.contributor.authorVepsäläinen, Antti
dc.contributor.authorWinik, Roni
dc.contributor.authorYoder, Jonilyn L
dc.contributor.authorOrlando, Terry P
dc.contributor.authorGustavsson, Simon
dc.contributor.authorTahan, Charles
dc.contributor.authorOliver, William D
dc.date.accessioned2022-07-18T15:57:37Z
dc.date.available2022-07-18T15:57:37Z
dc.date.issued2022
dc.identifier.urihttps://hdl.handle.net/1721.1/143812
dc.description.abstractInteracting many-body quantum systems show a rich array of physical phenomena and dynamical properties, but are notoriously difficult to study: they are challenging analytically and exponentially difficult to simulate on classical computers. Small-scale quantum information processors hold the promise to efficiently emulate these systems, but characterizing their dynamics is experimentally challenging, requiring probes beyond simple correlation functions and multi-body tomographic methods. Here, we demonstrate the measurement of out-of-time-ordered correlators (OTOCs), one of the most effective tools for studying quantum system evolution and processes like quantum thermalization. We implement a 3x3 two-dimensional hard-core Bose-Hubbard lattice with a superconducting circuit, study its time-reversibility by performing a Loschmidt echo, and measure OTOCs that enable us to observe the propagation of quantum information. A central requirement for our experiments is the ability to coherently reverse time evolution, which we achieve with a digital-analog simulation scheme. In the presence of frequency disorder, we observe that localization can partially be overcome with more particles present, a possible signature of many-body localization in two dimensions.en_US
dc.language.isoen
dc.publisherSpringer Science and Business Media LLCen_US
dc.relation.isversionof10.1038/S41567-021-01430-Wen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourcearXiven_US
dc.titleProbing quantum information propagation with out-of-time-ordered correlatorsen_US
dc.typeArticleen_US
dc.identifier.citationBraumüller, Jochen, Karamlou, Amir H, Yanay, Yariv, Kannan, Bharath, Kim, David et al. 2022. "Probing quantum information propagation with out-of-time-ordered correlators." Nature Physics, 18 (2).
dc.contributor.departmentMassachusetts Institute of Technology. Research Laboratory of Electronics
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
dc.contributor.departmentLincoln Laboratory
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physics
dc.relation.journalNature Physicsen_US
dc.eprint.versionOriginal manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dc.date.updated2022-07-18T15:52:07Z
dspace.orderedauthorsBraumüller, J; Karamlou, AH; Yanay, Y; Kannan, B; Kim, D; Kjaergaard, M; Melville, A; Niedzielski, BM; Sung, Y; Vepsäläinen, A; Winik, R; Yoder, JL; Orlando, TP; Gustavsson, S; Tahan, C; Oliver, WDen_US
dspace.date.submission2022-07-18T15:52:11Z
mit.journal.volume18en_US
mit.journal.issue2en_US
mit.licensePUBLISHER_POLICY
mit.metadata.statusAuthority Work and Publication Information Neededen_US


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