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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. |
