The Quantum Blackwell Theorem and Its Consequences

Date/Time: Mon. 26th May 2014 15:00-16:00 - (room 1320, sience building 4, University of Tokyo)

Speaker: Prof. Francesco Buscemi (Nagoya University)

David Blackwell, in 1949, discovered a powerful link between game theory and statistical estimation theory by reformulating the notion of statistical sufficiency in game-theoretic terms. In this talk I will show several ways to extend Blackwell's insight to the quantum setting, describing its deep consequences in the study of quantum nonlocality, quantum super-activation, and, more abstractly, the role of complete positivity in quantum theory.