Speaker - Giovanni Volpe Associate Senior Lecturer Department of Physics University of Gothenburg Sweden

Wednesday Mar. 6th , 2019, 13:00-14:00

Light refreshments and drinks will be served at 12:30

Auditorium 011, Engineering Class Room Building,  Faculty of Engineering, Tel-Aviv University

Abstract:

After a brief introduction of active particles, I’ll present some recent advances on the study of active particles in complex and crowded environments.


First, I’ll show that active particles can work as microswimmers and microengines powered by critical fluctuations and controlled by light. Then, I’ll discuss some examples of behavior of active particles in crowded environments: a few active particles alter the overall dynamics of a system; active particles create metastable clusters and channels; active matter leads to non-Boltzmann distributions and alternative non-equilibrium relations; and active colloidal molecules can be created and controlled by light. Finally, I’ll present some examples of the behavior of active particles in complex environments: active particles often perform 2D active Brownian motion; active particles at liquid-liquid interfaces behave as active interstitials or as active atoms; and the environment alters the optimal search strategy for active particles in complex topologies.

Short Bio: The group led by Giovanni Volpe is one of the internationally leading groups working on active matter. In particular, Volpe has made several seminal contributions to the field of active matter including the development of new species of self-propelling microparticles, the first experimental studies of active matter in complex environments, and the role played by sensorial delays. Giovanni Volpe is the lead author of one of the key review articles in the field of active matter with >400 citations in 2 years. Giovanni Volpe is one of the organizers of the CECAM Workshop “Active Matter and Artificial Intelligence” to be held in September 2019 in Lausanne (Switzerland), holds the ERC-StG ComplexSwimmers (2016-2021) and is the coordinator of the MSCA Intitial Training Network ActiveMatter (2019-2023, 24 European partners including 5 companies and 3 US Universities – CalTech, Princeton and UCSB).