dc.contributor.author | Braumüller, Jochen | |
dc.contributor.author | Karamlou, Amir H | |
dc.contributor.author | Yanay, Yariv | |
dc.contributor.author | Kannan, Bharath | |
dc.contributor.author | Kim, David | |
dc.contributor.author | Kjaergaard, Morten | |
dc.contributor.author | Melville, Alexander | |
dc.contributor.author | Niedzielski, Bethany M | |
dc.contributor.author | Sung, Youngkyu | |
dc.contributor.author | Vepsäläinen, Antti | |
dc.contributor.author | Winik, Roni | |
dc.contributor.author | Yoder, Jonilyn L | |
dc.contributor.author | Orlando, Terry P | |
dc.contributor.author | Gustavsson, Simon | |
dc.contributor.author | Tahan, Charles | |
dc.contributor.author | Oliver, William D | |
dc.date.accessioned | 2022-07-18T15:57:37Z | |
dc.date.available | 2022-07-18T15:57:37Z | |
dc.date.issued | 2022 | |
dc.identifier.uri | https://hdl.handle.net/1721.1/143812 | |
dc.description.abstract | Interacting 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.iso | en | |
dc.publisher | Springer Science and Business Media LLC | en_US |
dc.relation.isversionof | 10.1038/S41567-021-01430-W | en_US |
dc.rights | Article 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.source | arXiv | en_US |
dc.title | Probing quantum information propagation with out-of-time-ordered correlators | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Braumüller, 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.department | Massachusetts Institute of Technology. Research Laboratory of Electronics | |
dc.contributor.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | |
dc.contributor.department | Lincoln Laboratory | |
dc.contributor.department | Massachusetts Institute of Technology. Department of Physics | |
dc.relation.journal | Nature Physics | en_US |
dc.eprint.version | Original manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/NonPeerReviewed | en_US |
dc.date.updated | 2022-07-18T15:52:07Z | |
dspace.orderedauthors | Braumüller, 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, WD | en_US |
dspace.date.submission | 2022-07-18T15:52:11Z | |
mit.journal.volume | 18 | en_US |
mit.journal.issue | 2 | en_US |
mit.license | PUBLISHER_POLICY | |
mit.metadata.status | Authority Work and Publication Information Needed | en_US |