ICREA Prof. Stephan Roche is working at the Catalan Institute of Nanosciences and Nanotechnology-ICN2. He leads the "Theoretical & Computational Nanoscience" group which focuses on physics of Topological Quantum Matter (graphene & topological insulators,...) and 2D materials-based van der Waals heterostructures. He pioneered the development of linear scaling quantum transport approaches enabling simulations of billion atoms-scale disordered models (www.lsquant.org).  He studied Theoretical Physics at ENS, got PhD (1996) at Grenoble University (France); worked in Japan, Spain & Germany; appointed assistant Prof. in 2000, CEA Researcher in 2004 and ICREA in 2009. Award: Friedrich Wilhelm Bessel prize from the Alexander von Humboldt Foundation (Germany).