Institut für Theoretische Physik I
Universität Erlangen-Nürnberg
Staudtstraße 7
91058 Erlangen

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UnivIS FAU Erlangen-Nürnberg

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Workshop 'Nonlinear Response in Complex Matter'


The workshop 'Nonlinear Response in Complex Matter' of the DFG Research Unit FOR1394 will be held in Erlangen February 25-27 2013.

The workshop will feature lectures dealing with the nonlinear response of complex systems upon application of external perturbations. Contributed oral and poster presentations are invited from groups dealing with experiment, computer simulation and theory.

Complex systems are characterized by many degrees of freedom with competing interaction. For understanding the highly complex dynamics it is extremely helpful to go beyond the linear response. A detailed characterization of the spatio-temporal nonlinear response to homogeneous and inhomogeneous perturbations contains important additional pieces of information about the underlying structural and dynamical properties. In macro-rheological experiments this amounts, e.g., to the understanding of shear thinning, shear thickening or the occurrence of shear bands. However, the full scope of the nonlinear response and the corresponding non-equilibrium behavior has yet fully to be explored.

External perturbations of interest are, e.g., shear, gravity, electric and magnetic fields, or temperature gradients. The systems of interest may cover the broad range from supercooled liquids, biological and polymeric systems to soft solids. Specific nonlinear effects are also related to surfaces (e.g. sliding velocities of AFM tips) or interfaces of inhomogeneous systems.

This workshop will be a platform for discussions on recent developments in this active and multi-disciplinary field. By bringing together workers from these different fields a fruitful exchange about the similar behaviors but also the differences is envisaged ranging from microscopic to macroscopic length scales.

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Markus, 2012-08-18