Stephan Roche is ICREA Research Professor working at the Catalan Institute of Nanosciences and Nanotechnology-ICN2 in Barcelona, and head of the “Theoretical and Computational Nanoscience” group which focuses on the theoretical exploration of quantum transport phenomena in materials such as graphene, and topological insulators. After studying Theoretical Physics at the Ecole Normale Supérieure in France, he received a PhD in Physics in 1996 working at CNRS, and then worked in Japan, Spain and Germany. In 2000, he was appointed Professor Assistant at UJF (France) and CEA Researcher in 2004. During his stay at the Nanoscience Institute - INAC/CEA, he supervised the “simulation platform” of the CHEMTRONICS program, in preparation of the NANOSIMULATION program. In 2009, he was awarded the Friedrich Wilhelm Bessel prize from the Alexander von Humboldt Foundation (Germany). He is the PI of ICN2 in the GRAPHENE FLAGSHIP initiative (www.graphene-flagship.eu).