In 1964, Bell proved that quantum physics is incompatible with the intuition that our world is local: two experimentalists measuring the properties of two photons created by a same quantum source can produce correlations which cannot be explained by any classical theory. This was verified by the famous Aspect experiment, recently rewarded by a Nobel price. Those correlations, called nonlocal, are the fingerprint of quantum phenomena and at the origin of tremendous applications of quantum physics. A decade ago, physicists understood that Bell’s theorem is the first elementary manifestation of a broader phenomenon called network nonlocality. The project is to understand network nonlocal correlations, and to exploit them to either understand the foundations of physics or find practical applications to quantum theory. Depending on the profile of the candidate, several approaches can be considered: - Conceptual, analytical, mathematical - Optimization, numerical In case of continuation with a PhD, it may include collaborations with: - Quantum Info Theory: Nicolas Gisin (Geneva), Antonio Acin (Barcelona),David Gross (Cologne), Omar Fawzi (INRIA Lyon) - Quantum Distributed Computing: Jukka Suomela (Aalto, Finland), Pierre Fraigniaud, Frédéric Magniez (Paris) - Polynomial Optimization, C*/Operator Algebra: Victor Magron (Toulouse), Igor Klep (Ljubljana)