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Experimental estimate of a classicality witness via a single measurement

Aguilar, G H ; Farías, O Jiménez ; Maziero, J ; Serra, R M ; Ribeiro, P H Souto ; Walborn, S P

Physical review letters, 2012-02, Vol.108 (6), p.063601-063601, Article 063601 [Periódico revisado por pares]

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Título:
Experimental estimate of a classicality witness via a single measurement
Autor: Aguilar, G H ; Farías, O Jiménez ; Maziero, J ; Serra, R M ; Ribeiro, P H Souto ; Walborn, S P
É parte de: Physical review letters, 2012-02, Vol.108 (6), p.063601-063601, Article 063601
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The perception that quantum correlations can still appear in separable states has opened exciting new possibilities regarding their use as a resource in quantum information science. Quantifying such quantum correlations involves the complete knowledge of the system's state and numerical optimization procedures. Thus, it is natural to seek methods involving fewer measurements that indicate the nature of the correlations in a system. Here we propose a classicality witness that can be accurately estimated via statistics from a single measurement and perform an experiment to explore the utility of this witness for quantum states with different types of correlations.
Editor: United States
Idioma: Inglês

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