Quantum Causal Structure and Quantum Thermodynamics

Understand

This thesis reports progress in two domains, causal structures and microscopic thermodynamics, both of which are pertinent in the development of quantum technologies.

• The first part is dedicated to the analysis of causal structure, which encodes the relationship between observed variables, in general restricting the set of possible correlations between them.
• Our considerations rely on a recent entropy vector method.
• Based on this, we develop techniques for deriving entropic constraints to differentiate between causal structures.