[Soft-matter] Soft Matter and Complex Systems Seminar on 20 Oct 2023

[Maciej Lisicki]

Dear Soft Matter & Complex Systems Colleagues and Friends,

On Friday 20 October 2023 at 9:30 AM at the UW Faculty of Physics (Pasteura 5, Warsaw; room 1.40) we are hosting a seminar during which

Anna Maciołek (IChF PAN, Poland & MPI for Intelligent Systems, Germany)

will give a talk

Relaxation to steady states of a binary liquid mixture around an optically heated colloid

Abstract
Relaxation processes are fundamental phenomena in soft and condensed matter physics.The most research attention has  been paid to relaxation processes close to equilibrium, which are now well understood.This is not the case for relaxation near nonequilibrium steady states. One of the basic questions here is what determines the time scales for a given system to reach a nonequilibrium steady state and to relax back to  equilibrium. 
This problem is of particular relevance for light absorbing particles that heat up under laser illumination. In response to an emerging temperature gradient, the surrounding medium restructures giving rise to a variety of curious phenomena, which can be of great practical use. 
I will present our recent experimental and theoretical   study on relaxation dynamics in a system which over the last decade has become a paradigm for studying various aspects of active matter, i.e., a Janus silica particle half coated by gold and suspended in a binary liquid mixture.

We warmly welcome everyone to attend the talk and the Soft Matter Coffee Break after the seminar, held in room 2.63 (2nd floor).

Maria Ekiel-Jeżewska
Maciej Lisicki
Piotr Szymczak
Panagiotis Theodorakis
Marek Trippenbach
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