Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Majtey, Ana Paula | - |
| dc.creator | Bussandri, Diego G. | - |
| dc.creator | Osán, Tristán Martín | - |
| dc.creator | Lamberti, Pedro Walter | - |
| dc.creator | Valdés-Hernández, A. | - |
| dc.date | 2018-11-06T16:51:48Z | - |
| dc.date | 2018-11-06T16:51:48Z | - |
| dc.date | 2017-09 | - |
| dc.date | 2018-10-22T18:21:27Z | - |
| dc.date.accessioned | 2019-04-29T15:47:03Z | - |
| dc.date.available | 2019-04-29T15:47:03Z | - |
| dc.date.issued | 2018-11-06T16:51:48Z | - |
| dc.date.issued | 2018-11-06T16:51:48Z | - |
| dc.date.issued | 2017-09 | - |
| dc.date.issued | 2018-10-22T18:21:27Z | - |
| dc.identifier | Majtey, Ana Paula; Bussandri, Diego G.; Osán, Tristán Martín; Lamberti, Pedro Walter; Valdés-Hernández, A.; Problem of quantifying quantum correlations with non-commutative discord; Springer; Quantum Information Processing; 16; 9; 9-2017 | - |
| dc.identifier | 1570-0755 | - |
| dc.identifier | http://hdl.handle.net/11336/63765 | - |
| dc.identifier | 1573-1332 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/301898 | - |
| dc.description | In this work we analyze a non-commutativity measure of quantum correlations recently proposed by Guo (Sci Rep 6:25241, 2016). By resorting to a systematic survey of a two-qubit system, we detected an undesirable behavior of such a measure related to its representation-dependence. In the case of pure states, this dependence manifests as a non-satisfactory entanglement measure whenever a representation other than the Schmidt’s is used. In order to avoid this basis-dependence feature, we argue that a minimization procedure over the set of all possible representations of the quantum state is required. In the case of pure states, this minimization can be analytically performed and the optimal basis turns out to be that of Schmidt’s. In addition, the resulting measure inherits the main properties of Guo’s measure and, unlike the latter, it reduces to a legitimate entanglement measure in the case of pure states. Some examples involving general mixed states are also analyzed considering such an optimization. The results show that, in most cases of interest, the use of Guo’s measure can result in an overestimation of quantum correlations. However, since Guo’s measure has the advantage of being easily computable, it might be used as a qualitative estimator of the presence of quantum correlations. | - |
| dc.description | Fil: Majtey, Ana Paula. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física. Sección Física; Argentina | - |
| dc.description | Fil: Bussandri, Diego G.. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física. Sección Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | - |
| dc.description | Fil: Osán, Tristán Martín. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina | - |
| dc.description | Fil: Lamberti, Pedro Walter. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina | - |
| dc.description | Fil: Valdés-Hernández, A.. Universidad Nacional Autonoma de Mexico. Facultad de Ciencias; México | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Springer | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s11128-017-1669-9 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1007/s11128-017-1669-9 | - |
| dc.rights | info:eu-repo/semantics/restrictedAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | BIPARTITE SYSTEMS | - |
| dc.subject | HILBERT–SCHMIDT NORM | - |
| dc.subject | NON-COMMUTATIVE DISCORD | - |
| dc.subject | QUANTUM CORRELATIONS | - |
| dc.subject | QUANTUM CORRELATIONS MEASURE | - |
| dc.subject | QUANTUM DISCORD | - |
| dc.subject | Astronomía | - |
| dc.subject | Ciencias Físicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Problem of quantifying quantum correlations with non-commutative discord | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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