Quantum Correlations in Mixed-State Metrology

We analyze the effects of quantum correlations, such as entanglement and discord, on the efficiency of phase estimation by studying four quantum circuits that can be readily implemented using NMR techniques. These circuits define a standard strategy of repeated single-qubit measurements, a classical...

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Detalhes bibliográficos
Principais autores: Modi, K, Cable, H, Williamson, M, Vedral, V
Formato: Journal article
Idioma:English
Publicado em: 2011