Publication:
Dynamics of entanglement and quantum discord in the Tavis-Cummings model

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col.comunidadvinculadaComunidad científica colombianaes_CO
col.contrato0005-2013es_CO
col.date.proyecto2013-02
col.programa.colcienciasPrograma Nacional de Ciencias Básicases_CO
col.tipo.espArtículos de investigaciónes_CO
dc.audienceAdministradores de ciencia y tecnologíaes_CO
dc.audienceInvestigadoreses_CO
dc.coverage.spatialColombiaes_CO
dc.creatorRestrepo, Juliana
dc.creatorRodríguez, Boris A.
dc.creator.corporativoUniversidad de Antioquia, UdeAes_CO
dc.creator.mailjulianrestrepo@uan.edu.coes_CO
dc.date.accessioned2019-03-17T21:19:53Z
dc.date.available2019-03-17T21:19:53Z
dc.date.embargoEndinfo:eu-repo/date/embargoEnd/2024-01-31es_CO
dc.date.issued2016-05-20
dc.description.abstractWe revisit the problem of the dynamics of quantum correlations in the Tavis-Cummings model. Our results show that the dynamics of entanglement and quantum discord are far from being trivial or intuitive. We find states with the same entanglement but different discord and states where the two quantifiers give opposite information about correlations at a certain time. We furthermore show that many of the dynamical features of quantum discord attributed to dissipation are already present in the exact framework and are due to the characteristic quantum nonlinearity of the model and to the choice of initial conditions. Through a comprehensive analysis of pure and mixed initial conditions, we find a fascinating range of phenomena that can be used for experimental purposes. We propose an experiment called quantum discord gates where for given pure initial condition discord is zero or non-zero depending on the number of photons in the cavity. Given the marginal character of states with zero discord this result is not only completely counterintuitive but is also useful as a way to count photons.es_CO
dc.description.isprojectnoes_CO
dc.description.projectid1115-569-34912es_CO
dc.description.sponsorshipDepartamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colcienciases_CO
dc.formatpdfes_CO
dc.format.extent11 páginases_CO
dc.identifier.bibliographicCitationContiene 74 referencias bibliográficas. Véase el documento adjuntoes_CO
dc.identifier.doi10.1088/0953-4075/49/12/125502
dc.identifier.urihttp://repositorio.colciencias.gov.co/handle/11146/34062
dc.language.isoenges_CO
dc.relation.ispartofBaños térmicos cuánticos: influencia de la no-gaussianidad estadística y no-localidad dinámica en la evolución temporal de sistemas cuánticos abiertos. La publicación completa está disponible en : <a href="http://repositorio.colciencias.gov.co/handle/11146/34053" target="blank">http://repositorio.colciencias.gov.co/handle/11146/34053</a>es_CO
dc.rightsinfo:eu-repo/semantics/embargoedAccesses_CO
dc.sourceJournal of Physics B: Atomic, Molecular and Optical Physics. No 49. 125502 (11 pp). 2016es_CO
dc.subject.keywordFoundations of quantum mechanics
dc.subject.keywordEntanglement
dc.subject.keywordQuantum discord
dc.subject.keywordQuantum information
dc.subject.lembMétodos de simulaciónes_CO
dc.subject.lembCampos electromagnéticoses_CO
dc.subject.lembEnergía (Física)es_CO
dc.subject.spinesTeoría cuánticaes_CO
dc.subject.spinesMecánica cuánticaes_CO
dc.subject.spinesPropagación de ondases_CO
dc.subject.spinesElectrónica cuánticaes_CO
dc.titleDynamics of entanglement and quantum discord in the Tavis-Cummings modeles_CO
dc.typeArtículo científicoes_CO
dc.type.driverinfo:eu-repo/semantics/articlees_CO
dc.type.hasversioninfo:eu-repo/semantics/publishedVersiones_CO
dspace.entity.typePublication

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