Optimal transport in interacting many-body systems

• Antragsteller: Professor Dr. Tobias Kramer
• Fachliche Zuordnung: Statistische Physik, Nichtlineare Dynamik, Komplexe Systeme, Weiche und fluide Materie, Biologische Physik
• Förderung: Förderung von 2013 bis 2016
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 229920972

Efficient and fast transport of electronic excitations is a basic requirement for the functioning of nanodevices and biological light-harvesting complexes. Typically, the transport happens in the presence of incoherent processes and at finite temperatures. In addition, the excitation flow generates forces and motions which act back on the transport and renders the dynamics non-Markovian and non-linear. The Heisenberg project focuses on developing methods to describe the transport through molecular networks and nanosystems under the influence of such a “noisy'' environment. The advent of pump-probe laser-spectroscopy in the femtosecond range has opened the possibility to take snapshots of the stages of the transport and a number of intriguing and unexplained observations about the interplay between coherent and dissipative processes have been made. A better understanding of the underlying physics is needed and becomes directly applicable to the design of sensors, room-temperature electronics, and optimized artificial photosynthetic complexes. The methods developed within the Heisenberg project are targeted towards high-performance graphics computing units (GPU), which allow me an efficient computation of interacting many-body systems, but require to design new algorithms to tap into the full potential of this emergent supercomputing platform.

• DFG-Verfahren: Sachbeihilfen
• Großgeräte: GPU Computing Cluster
• Gerätegruppe: 7030 Dedizierte, dezentrale Rechenanlagen, Prozeßrechner