Experimental Exploration of Quantum Correlations: Discord versus

Transcript

Experimental Exploration of Quantum Correlations: Discord versus
Experimental Exploration of Quantum Correlations:
Discord versus Entanglement
E V Moreva1 , M Gramegna1 , M A Yurischev2 , and M Genovese1
1
2
Istituto Nazionale di Ricerca Metrologica, Turin, Italy
Institute of Problems of Chemical Physics of the Russian Academy of Sciences, Moscow, Russia
Contact Email: [email protected]
Quantum correlations represent a fundamental tool for studies ranging from basic science to quantum
technologies. Different non-classical correlations have been identified and studied, as entanglement and
discord. In this letter we explore experimentally the rich geometry of Bell-diagonal states, measuring the
values of entanglement and discord and highlighting the effect of decoherence in real experiments.

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