Date  Speaker  Topic  Time 
Wed 03.05.2017  G. Pessot  Selfinduced polar order for pushers and pullers  13:30 s.t. 
Mon 08.05.2017  C. Hoell  Dynamical density functional theory for circle swimmers  14:30 s.t. 
Wed 10.05.2017  C. Sitta  Tetratic phases of rectangles using DFT  14:30 s.t. 
Wed 31.05.2017  C. Scholz  There's something hidden in the basement  active matter driven by vibrations!  14:30 s.t. 
Thu 01.06.2017  E. Allahyarov  A review of new developments in responsive nanocomposites  14:30 s.t. 
Mon 12.06.2017  S. Babel  DDFT of charged particles in an electric field  14:30 s.t. 
Wed 14.06.2017  S. Jahanshahi  The Brazil nut and reverse Brazil nut effects  14:30 s.t. 
Wed 28.06.2017  M. Puljiz  Two magnetically interacting rigid inclusions in a soft gel  13:30 s.t. 
Wed 28.06.2017  U. Zimmermann  Dynamical Density Functional Theory in 2D Microchannels  14:30 s.t. 
Fri 30.06.2017  A. Gabriëlse  Crystallization of nanoparticles with squareshoulder interactions  14:30 s.t. 
Date  Speaker  Topic  Time 
Wed 03.05.2017  G. Pessot  Selfinduced polar order for pushers and pullers  13:30 s.t. 
Mon 29.05.2017  S. Ganguly  Interfacial free energies at solidsolid interfaces  14:30 s.t. 
Wed 31.05.2017  C. Scholz  There's something hidden in the basement  active matter driven by vibrations!  14:30 s.t. 
Thu 01.06.2017  E. Allahyarov  A review of new developments in responsive nanocomposites  14:30 s.t. 
Mon 12.06.2017  S. Babel  DDFT of charged particles in an electric field  14:30 s.t. 
Wed 14.06.2017  S. Jahanshahi  The Brazil nut and reverse Brazil nut effects  14:30 s.t. 
Fri 16.06.2017  M. Golkia  Residual stresses in glasses  14:30 s.t. 
Fri 30.06.2017  A. Gabriëlse  Crystallization of nanoparticles with squareshoulder interactions  14:30 s.t. 
Wed 02.08.2017  M. Eshraghi  Yukawa fluids and solids near hard walls: Evidence for a prefreezing transition  14:30 s.t. 
Date  Speaker  Affiliation  Time  
Mon 31.07.2017  Pinaki Chaudhuri  The Institute of Mathematical Sciences, Chennai, India  14:30 s.t.  
Longrange dynamic correlations during aging of gels  
Fri 28.07.2017  Suvendu Mandal  Universität Innsbruck, Austria  14:30 s.t.  
Suvendu Mandal: „The dynamics of driven and active Brownian particles” 

Wed 26.07.2017  Vladimir S. Filinov  Russian Academy of Sciences, Moscow, Russia  14:30 s.t.  
Vladimir S. Filinov: „Peculiarities of momentum distribution functions of strongly correlated charged fermions” 
References

It’s axiomatic that the slowing of diffusion, increasing sluggishness of flow and delay of the structural relaxation a fluid when its density is increased are due to the increasing congestion among the particles comprising the fluid. It is also generally accepted that these manifestations of dynamic slowing are due to the ”cage effect“ the microscopic picture in which particles are trapped, at least momentarily, by their respective neighbours. An attempt to examine the role of caging more closely considers the spread of the displacement distributions of Brownian particles. These distributions are necessarily biased by the presence of neighbouring particles. Accommodation of this bias by those neighbours conserves the displacement distribution locally and presents a collective mechanism for exploring configuration space that turns out to be more efficient than the intrinsic Brownian motion. Blocking of the bias effects caging of some particles, however locally in space and time. This incurs, through the impost of global conservation of probability (the average number of caged particles), a delayed, nonlocal collective process. Both collective mechanisms incur delay or stretching of time correlation functions, in particular the particle number and flux densities. This presentation identifies and distinguishes these mechanisms in existing data from dynamic light scattering experiments and computer simulations on systems of particles with hard sphere interactions.
Selfpropelled particles are intrinsically out of equilibrium and exhibit peculiar dynamical behavior. These active agents are subject to strong stochastic fluctuations, that compete with their persistent swimming motion. So far most studies consider the lowest order moments of the displacements only, while more general spatiotemporal information is encoded in the directly measurable intermediate scattering function, i.e. the Fourier transform of the probability density. In this talk, I will discuss analytic solutions of the intermediate scattering function of an active Brownian particle and a Brownian circle swimmer, and show, that our theoretical predictions agree very well with experimental observations of Janus particles. The mathematical analog to the selfpropelled particle constitutes the semiflexible polymer. I will also provide an exact solution for the partition sum of a semiflexible polymer under compression and analyze its buckling behavior in terms of the forceextension relation.
Date  Speaker  Affiliation  Time 
Thu 20.07.2017  Prof. Dr. Tanja Schilling  Universität Freiburg  16:30 s.t. 
Prof. Dr. Tanja Schilling: „Playful Physics” 

Thu 29.06.2017  Prof. Dr. Holger Stark  Institut für Theoretische Physik, Technische Universität Berlin  16:30 s.t. 
Microswimmers: From design principles to their emergent collective behavior  
Thu 26.01.2017  Prof. Karsten Flensberg  Niels Bohr Institute, University of Copenhagen, Denmark  16:30 s.t. 
Towards Majoranabased topological qubits?  
Thu 19.01.2017  Prof. Michael Eikerling  Simon Fraser University, Vancouver, Canada  16:30 s.t. 
The Physics of Electrochemical Energy Conversion  
Thu 08.12.2016  PD Dr. Antonio Di Piazza  MaxPlanckInstitut für Kernphysik, Heidelberg  16:30 s.t. 
Tests of classical and quantum electrodynamics in intense laser beams  
Thu 24.11.2016  Prof. Dr. Susana Huelga  Universität Ulm  16:30 s.t. 
Vibrations, Quanta and Biology  
Thu 27.10.2016  Prof. Joseph Indekeu  Theoretical Physics, KU Leuven, Belgium  16:30 s.t. 
Shortrange wetting in two dimensions: is it always secondorder? 