Résumé |
1) Active Matter: models of self-propelled particles, stochastic thermodynamics and linear response
After a brief, general overview of active matter systems, I will present simple models of isotropic self-
propelled particles. Then, I will discuss attempts to generalize stochastic thermodynamics to systems of self-
propelled particles. I will end with a discussion of linear response functions of active matter systems.
2) Active Matter: systems of many interacting self-propelled particles
I will discuss collective behavior of interacting systems of self-propelled particles. I will start with motility-
induced phase separation and then discuss the complete phase diagram in two spatial dimensions. Next, I will
discuss slowing down in dense active amorphous systems. For small persistence, active glassy behavior
resembles that of passive systems, although the apparent glass transition line evolves non-trivially with the
persistence. For large persistence, active glassy behavior exhibits intermittent dynamics and the particles
displacements are correlated. I will end with a brief discussion of the long-range velocity correlations and the
rheological response of active systems. |