Lehrstuhl für Physikalische Chemie I
Am Hubland, 97074 Würzburg
Research foci (and basic equipment-based research projects):
In mutual cooperation with collegues of the Department of Chemistry, Stanford University, theoretical studies were carried out on the effects of ubiquitous concentration fluctuations on kinetic and transport processes in nonequilibrium thermodynamics.
A theoretical formalism was developed for single- and many-particle systems. It was applied to specific diffusion and relaxation processes in certain environments (external force fields). Among other things, multiplicative fractal noise (with long-time memory)acted on a nonlinear reaction system (Sel'kov model) with the result that multiplicative fractal noise dampens the oscillations of a stable limit cycle. This effect represents the temporal analogue of the socalled Anderson localization. In further work an exact analytical formalism has been developed for single-molecule kinetics. For single molecules, damped oscillations of the correlation functions of various orders of a fluorescence signal are predicted instead of an exponential decay.
All theoretical results were tested numerically and verified by the use of modern workstations.