Winter (born 14 June 1971, Mühldorf, Germany[1]) is a German mathematician and mathematical physicist at the Universitat Autònoma de Barcelona (UAB) in Spain.
He received his Ph.D. in 1999 under Rudolf Ahlswede and Friedrich Götze at the Universität Bielefeld in Germany before moving to the University of Bristol and then to the Centre for Quantum Technologies (CQT) at the National University of Singapore.
[2] Together with Marcin Pawlowski, Tomasz Paterek, Dagomir Kaszlikowski, and Valerio Scarani, he discovered information causality.
Together with Runyao Duan and Simone Severini, he introduced a quantum mechanical version of the Lovász number.
Together with Sandu Popescu, Noah Linden and Tony Short he proved that local equilibration of large quantum systems is a generic phenomena.