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| Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
20/03/2012 |
Data da última atualização: |
19/03/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
AUCCASIE, R.; MAZIERO, J.; CELERI, L. C.; SOARES-PINTO, D. O.; AZEVEDO, E. R.; BONAGAMBA, R. S.; SARTHOUR, R. S.; OLIVEIRA, I. S.; SERRA, R. M. |
Título: |
Experimentally witnessing the quantumness of correlations. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Physical Review Letters, v. 107, n. 7, p. 070501-070501-5, Aug. 2011. |
DOI: |
10.1103/PhysRevLett.107.070501 |
Idioma: |
Português |
Conteúdo: |
The quantification of quantum correlations (other than entanglement) usually entails labored numerical optimization procedures also demanding quantum state tomographic methods. Thus it is interesting to have a laboratory friendly witness for the nature of correlations. In this Letter we report a direct experimental implementation of such a witness in a room temperature nuclear magnetic resonance system. In our experiment the nature of correlations is revealed by performing only few local magnetization measurements. We also compared the witness results with those for the symmetric quantum discord and we obtained a fairly good agreement. |
Palavras-Chave: |
Quantumness. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 01347naa a2200241 a 4500 001 1919546 005 2013-03-19 008 2011 bl uuuu u00u1 u #d 024 7 $a10.1103/PhysRevLett.107.070501$2DOI 100 1 $aAUCCASIE, R. 245 $aExperimentally witnessing the quantumness of correlations.$h[electronic resource] 260 $c2011 520 $aThe quantification of quantum correlations (other than entanglement) usually entails labored numerical optimization procedures also demanding quantum state tomographic methods. Thus it is interesting to have a laboratory friendly witness for the nature of correlations. In this Letter we report a direct experimental implementation of such a witness in a room temperature nuclear magnetic resonance system. In our experiment the nature of correlations is revealed by performing only few local magnetization measurements. We also compared the witness results with those for the symmetric quantum discord and we obtained a fairly good agreement. 653 $aQuantumness 700 1 $aMAZIERO, J. 700 1 $aCELERI, L. C. 700 1 $aSOARES-PINTO, D. O. 700 1 $aAZEVEDO, E. R. 700 1 $aBONAGAMBA, R. S. 700 1 $aSARTHOUR, R. S. 700 1 $aOLIVEIRA, I. S. 700 1 $aSERRA, R. M. 773 $tPhysical Review Letters$gv. 107, n. 7, p. 070501-070501-5, Aug. 2011.
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