Horacio Casini is an independent researcher for the National Scientific and Technical Council (CONICET), Argentina, and assistant professor at Instituto Balseiro, Bariloche, Argentina. He was awarded jointly, with Marina Huerta, Shinsei Ryu, and Tadashi Takayanagi, the New Horizons in Physics Prize in 2014 for “fundamental ideas about entropy in quantum field theory and quantum gravity.”
Casini’s research in the last 10 years has focused on entanglement entropy in quantum field theory, holography and gravity. In particular, he showed Bekenstein’s entropy bound coming from black hole physics is related to positivity of relative entropy and to distinguishability of states. In collaboration with Marina Huerta, he proved renormalization group irreversibility in three dimensions (called the F-theorem) from properties of entanglement entropy for circular regions.