## Ludovic Berthier, Montpellier University

# Glass transition and amorphous solids
(12h)

### 1. Why is glassy dynamics an interesting physics problem? Dynamical slowing down, thermodynamic signatures, growing lengthscales, dynamic heterogeneity.

### 2. Theoretical approaches: Kinetically constrained models, mean-field theory, computer simulations.

### 3. Configurational entropy: Definition, problems, paradoxes, practical measurements, point-to-set correlation length scale.

### 4. The amorphous solid: Rheology and yielding, the Gardner phase, two-level systems, low-frequency modes, connection to jamming.

### 5. Active materials: Experimental motivations, nonequilibrium glass transitions, mapping to equilibrium, effective temperatures.