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Pairwise tomography networks for many-body quantum systems

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Garcia-Perez, Guillermo
dc.contributor.author Rossi, Matteo A. C.
dc.contributor.author Sokolov, Boris
dc.contributor.author Borrelli, Elsi-Mari
dc.contributor.author Maniscalco, Sabrina
dc.date.accessioned 2021-01-25T10:11:52Z
dc.date.available 2021-01-25T10:11:52Z
dc.date.issued 2020-06-24
dc.identifier.citation Garcia-Perez , G , Rossi , M A C , Sokolov , B , Borrelli , E-M & Maniscalco , S 2020 , ' Pairwise tomography networks for many-body quantum systems ' , PHYSICAL REVIEW RESEARCH , vol. 2 , no. 2 , 023393 . https://doi.org/10.1103/PhysRevResearch.2.023393 en
dc.identifier.issn 2643-1564
dc.identifier.other PURE UUID: 55d8da9e-40e7-41d9-aa38-9aeeffd43c74
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/55d8da9e-40e7-41d9-aa38-9aeeffd43c74
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/55375425/Garc_a_P_rez_Pairwise.PhysRevResearch.2.023393.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/102150
dc.description.abstract We introduce the concept of pairwise tomography networks to characterize quantum properties in many-body systems and demonstrate an efficient protocol to measure them experimentally. Pairwise tomography networks are generators of multiplex networks where each layer represents the graph of a relevant quantifier, such as, e.g., concurrence, quantum discord, purity, quantum mutual information, or classical correlations. We propose a measurement scheme to perform two-qubit tomography of all pairs showing exponential improvement in the number of qubits N with respect to previously existing methods. We illustrate the usefulness of our approach by means of several examples revealing its potential impact to quantum computation, communication, and simulation. We perform a proof-of-principle experiment demonstrating pairwise tomography networks of W states on IBM Q devices. en
dc.format.extent 9
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher American Physical Society
dc.relation.ispartofseries PHYSICAL REVIEW RESEARCH en
dc.relation.ispartofseries Volume 2, issue 2 en
dc.rights openAccess en
dc.title Pairwise tomography networks for many-body quantum systems en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department University of Turku
dc.contributor.department ABB Corporate Research Center - Switzerland
dc.contributor.department Centre of Excellence in Quantum Technology, QTF
dc.contributor.department Department of Applied Physics en
dc.subject.keyword ENTANGLEMENT
dc.subject.keyword STATE
dc.identifier.urn URN:NBN:fi:aalto-202101251460
dc.identifier.doi 10.1103/PhysRevResearch.2.023393
dc.type.version publishedVersion

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