Conditional purity and quantum correlation measures in two qubit mixed states

dc.creatorRebón, Lorena
dc.creatorRossignoli, Raúl Dante
dc.creatorVarga, Juan José Miguel
dc.creatorGigena, Nicolás Alejandro
dc.creatorCanosa, Norma Beatriz
dc.creatorIemmi, Claudio César
dc.creatorLedesma, Silvia Adriana
dc.date2016-09
dc.date2020-05-12T16:42:32Z
dc.date.accessioned2023-07-14T20:01:51Z
dc.date.available2023-07-14T20:01:51Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/95724
dc.identifierhttps://ri.conicet.gov.ar/11336/70691
dc.identifierissn:0953-4075
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7437633
dc.descriptionWe analyze and show experimental results of the conditional purity, the quantum discord and other related measures of quantum correlation in mixed two-qubit states constructed from a pair of photons in identical polarization states. The considered states are relevant for the description of spin pair states in interacting spin chains in a transverse magnetic field. We derive clean analytical expressions for the conditional local purity and other correlation measures obtained as a result of a remote local projective measurement, which are fully verified by the experimental results. A simple exact expression for the quantum discord of these states in terms of the maximum conditional purity is also derived.
dc.descriptionInstituto de Física La Plata
dc.descriptionDepartamento de Física
dc.formatapplication/pdf
dc.format215501-215509
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5)
dc.subjectCiencias Exactas
dc.subjectQuantum correlations
dc.subjectMeasures
dc.subjectConditional purity
dc.titleConditional purity and quantum correlation measures in two qubit mixed states
dc.typeArticulo
dc.typePreprint


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