Gabriel Bester, Max Planck Institute for Solid State Research, Germany
Title: Frontiers in the atomistic modelling of the excited states of nanostructures

Dr. Gabriel Bester studied physics at the University of Stuttgart where he obtained his Master of Science in 1997. His Master's thesis focused on the connection between the thermodynamic properties of defect formation and its microscopic origin. By combining "ab-initio" density functional calculations (DFT) with a thermodynamic model, he gained access to the energetics of atomic defects and their concentrations. He applied the theory to intermetallic compounds. In 2001 he obtained his PhD based on the work he did at Max-Planck institute for Metal Research in Stuttgart in the group of Prof. Manfred Fahnle. The work focused on the interpretation of results obtained in the framework of DFT in the language of bonding/antibonding interatomic interactions. The connection to this intuitive chemical language was established by defining a bond strenght (Ecov) valid for periodic systems. Following his PhD he joined the group of Dr. Alex Zunger at the National Renewable Energy Laboratory (NREL) as a Postdoc, where he worked on the calculation of the electronic and optical properties of nanostructures. From 2004 until 2007 he worked in the Solid State Theory group at NREL as Senior Scientist on the development of numerical methods and the application of these methods to a variety of problems in the realm of quantum dot physics. In 2007 he was appointed as independent junior research group leader at the Max Planck Institute for Solid State Research. In 2012 he obtained the hablitation from the University of Stuttgart.