Non-classicality in simple quantum networks
Dr. Rafael Rabelo, Universidade Estadual de Campinas, Brasil

Date, Time
29.05, 15:00 - 16:00

Location
hybrid meetnig (room 16), link (MSTeams) >>>

One of the most counterintuitive features of quantum mechanics is Bell nonlocality — a phenomenon associated to stronger-than-classical correlations between outcomes of measurements performed on spatially separated systems. While traditionally studied in scenarios where two or more parties share subsystems originating from a single common source, recent research has extended the study of non-classical correlations to more general quantum networks, where subsystems may be prepared by multiple independent sources. In this talk, I will present recent results demonstrating how such non-classical correlations can emerge in simple network configurations, even in the absence of assumptions like locality or external measurement choices, and show how tools inspired by causal inference can be used to reveal and characterize these correlations more effectively. Also, I will introduce a distinct kind of non-classical behavior, inspired by quantum contextuality, and show how this phenomenon can be observed in a single node of the network.