| Citation | Parrinello has created computer simulation methodologies and algorithms that have a major impact in physical sciences. Following his seminal contribution to the study of structural transformations, he developed the celebrated Car-Parrinello method which, for the first time, unified the disparate fields of classical molecular dynamics and electronic structure, to simulate complex many-body systems from first principles. His work provides deep insight into the structure and dynamics of water and aqueous solutions, materials under ultra high pressure, the chemical reactivity of zeolites, and substrate supported polymerisation reactions. Recent work has expanded the time and length scales accessible to simulations, especially in bio-related applications such as the dynamics of home-bound molecules and the electronic structure of hydrated DNA strands. |