Genuine network quantum nonlocality and self-testing

Understand

The network structure offers in principle the possibility for novel forms of quantum nonlocal correlations, that are proper to networks and cannot be traced back to standard quantum Bell nonlocality.

• Here we define a notion of genuine network quantum nonlocality.
• Our approach is operational and views standard quantum nonlocality as a resource for producing correlations in networks.
• We show several examples of correlations that are genuine network nonlocal, considering the so-called bilocality network of entanglement swapping.