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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/129432
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dc.contributor.authorFanchini, F. F.-
dc.contributor.authorNapolitano, R. D. J.-
dc.contributor.authorCakmak, B.-
dc.contributor.authorCaldeira, A. O.-
dc.date.accessioned2015-10-21T21:05:13Z-
dc.date.accessioned2016-10-25T21:09:10Z-
dc.date.available2015-10-21T21:05:13Z-
dc.date.available2016-10-25T21:09:10Z-
dc.date.issued2015-04-22-
dc.identifierhttp://journals.aps.org/pra/abstract/10.1103/PhysRevA.91.042325-
dc.identifier.citationPhysical Review A, v. 91, n. 4, p. 1-10, 2015.-
dc.identifier.issn1050-2947-
dc.identifier.urihttp://hdl.handle.net/11449/129432-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/129432-
dc.description.abstractWe study the occurrence of errors in a continuously decoupled two-qubit state during a root SWAP quantum operation under decoherence. We consider a realization of this quantum gate based on the Heisenberg exchange interaction, which alone suffices for achieving universal quantum computation. Furthermore, we introduce a continuous-dynamical-decoupling scheme that commutes with the Heisenberg Hamiltonian to protect it from the amplitude damping and dephasing errors caused by the system-environment interaction. We consider two error-protection settings. One protects the qubits from both amplitude damping and dephasing errors. The other features the amplitude damping as a residual error and protects the qubits from dephasing errors only. In both settings, we investigate the interaction of qubits with common and independent environments separately. We study how errors affect the entanglement and fidelity for different environmental spectral densities.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.format.extent1-8-
dc.language.isoeng-
dc.publisherAmer Physical Soc-
dc.sourceWeb of Science-
dc.titleProtecting the root SWAP operation from general and residual errors by continuous dynamical decouplingen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)-
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias, BR-17033360 Bauru, SP, Brazil-
dc.description.affiliationUniv Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil-
dc.description.affiliationUniv Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Departamento de Física, Fac Ciencias, BR-17033360 Bauru, SP, Brazil-
dc.description.sponsorshipIdFAPESP: 2012/50464-0-
dc.description.sponsorshipIdFAPESP: 2014/21792-5-
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevA.91.042325-
dc.identifier.wosWOS:000353281200003-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofPhysical Review A-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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