Dear All, This weeks research day on Thursday will be at the Computer Science Building CAB. Speaker: Stefan Wolf Title: Bell Inequalities Without Quantum Advantage Time: 17:15 pm Place: CAB H 52 Abstract: It has been an open problem -- no. 26 of Reinhard Werner's collection -- whether there exists a Bell inequality that - defines a face of the local polytope, - cannot be violated by quantum physics, but - can be violated by a non-signaling strategy. We discuss an affirmative answer to the question given by Almeida, Bancal, Brunner, Acin, Gisin, and Pironio. Cheers, Dejan