Dear All, The next QI Seminar is on Tuesday, 5:00 pm, in IFW E44. We will have a guest talk by Nicolas Brunner from GAP-Optique at the University of Geneva. Speaker: Nicolas Brunner Title: "Can we see entanglement?" Abstract: According to recent studies, the human eye can detect a signal consisting of very few photons. Though most researchers disagree on the minimal number of photons required (between 3 and 10), there are clear evidences that such a threshold exists. In the context of quantum information, one may wonder whether a non-linear detector such as the eye can be used to detect entanglement, or quantum non-locality. Cheers, Dejan