Experimental Exploration of Quantum Correlations: Discord versus Entanglement

Abstract

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 view of future applications 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.

This article has been withdrawn due to the drawing up of a paper with additional upgrades and modifications. A new submission will be performed at a later stage