30th Marian Smoluchowski Symposium on Statistical Physics

Session

Session 2

4 Sept 2017, 14:30

Conveners

Session 2: Panel B

• Robert Holyst (Institute of Physical Chemistry PAS)

74. A tribute to Marian Smoluchowski's legacy on colloid type matter aggregation, and related issues

Adam Gadomski (UTP University of Science and Technology Bydgoszcz, Poland)

04/09/2017, 14:30

oral

In 1916 Marian Smoluchowski proposed a case of constant-kernel cluster cluster aggregation, for which it is manageable to find analitycally by employing scaling arguments, a solution in terms of the cluster size (k) distribution function, n(k) [1,2]. By applying this scaling function it is then possible to get, within the long times' limit, the results for the mean cluster size {k} and the...

8. Stationary diffusion among partially reactive sinks: from von Smoluchowski to recent advances

Denis Grebenkov (CNRS)

04/09/2017, 15:00

oral

In 1917, von Smoluchowski founded the first mathematical theory of diffusion-limited reactions by computing the diffusive flux towards a perfect spherical sink. In spite of many advances over the past hundred years, stationary diffusion in complex media with numerous sinks of various shapes and reactivities remains poorly understood. After a brief overview, we present a recently developed...

121. Stochastic advection-reaction-diffusion model for phytoplankton populations in a 2D spatial domain

Davide Valenti (Department of Physics and Chemistry, University of Palermo)

04/09/2017, 15:20

oral

Phytoplankton lies at the base of the food chain of seas and oceans, and it is responsible for about 80% of the total *chlorophyll a*. As a consequence, phytoplankton determines the trophic structures of marine ecosystems, while influencing the total abundance and the spatial distributions of marine biological species, e.g. fish populations. Thus the study of spatio-temporal dynamics of...

101. Thermodynamic activation energy for self diffusion and order-order relaxation in intermetallic compounds: atomistic model and Monte Carlo simulations

Rafal Abdank-Kozubski (M. Smoluchowski Institute of Physics, Jagiellonian University in Krakow)

04/09/2017, 15:40

oral

Self-diffusion and the ‘order order’ relaxation process in intermetallic compounds is described in terms of effective atomic jump frequencies and the current degree of chemical long-range order. It is demonstrated that the thermodynamic activation energies of self-diffusion and the ‘order-order’ relaxation can be expressed in terms of the activation energies of more elementary processes. As...