30th Marian Smoluchowski Symposium on Statistical Physics

Session

Session 8

6 Sept 2017, 09:00

Conveners

Session 8: Panel B

• Andrzej Krawiecki (Faculty of Physics, Warsaw University of Technology)

100. Autonomous thermal motors

Alberto Imparato (University of Aarhus, Department of Physics and Astronomy)

06/09/2017, 09:00

oral

We present a minimal model of autonomous thermal motor, made of two interacting Brownian particles, sitting on two periodic potentials, and kept at different temperatures. We show that such a system does not require ratchet potentials (with , e.g., an asymmetric saw-tooth shape) in order to exhibit direct transport, but presents a spontaneous symmetry breaking. Both the dynamic and...

44. Out-of-equilibrium physics in spontaneous synchronization

Stefano Ruffo (SISSA)

06/09/2017, 09:20

oral

Spontaneous synchronization is a cooperative phenomenon common in nature which makes oscillators of different frequencies, if strongly coupled, operate together with a single common frequency. Such cooperative effects occur in physical and biological systems over length and time scales of several orders of magnitude. Examples: are flashing of fireflies, rhythmic applause in a concert hall,...

90. Lyapunov spectral analysis of randomly coupled systems

Anandamohan Ghosh (Indian Institute of Science Education and Research Kolkata)

06/09/2017, 09:50

oral

The collective dynamics of coupled units arranged on a random network exhibits complex dynamics ranging from synchronization to spatio-temporal chaos. It is often important to identify if perturbations spread across the network or are confined locally, in the presence of quenched disorder. The spectrum of Lyapunov exponents, quantifying the sensitivity to perturbations, can be analyzed...

89. Novel ordered phases in coupled driven systems: large compact clusters and fast dynamics

Sakuntala Chatterjee (S.N. Bose National Centre for Basic Sciences, Kolkata, India)

06/09/2017, 10:05

oral

We demonstrate particle clustering on macroscopic scales in a coupled nonequilibrium system where two species of particles are advected by a fluctuating landscape and modify the landscape in the process. The phase diagram generated by varying the particle-landscape coupling, valid for all particle density and in both one and two dimensions, shows novel nonequilibrium phases. While particle...