ESPCI web site
Séminaire Café (Interne)
Il s’agit d’un exposé assez court (20 min) et assez informel.
Prière aux conférencier·ère·s de ne jamais dépasser 30 min et de vérifier la compatibilité avec le projecteur avant le séminaire.
Les séminaires ont lieu les jeudis après la réunion du laboratoire qui débute à 13h30 dans la bibliothèque du labo sur le campus Jussieu, Barre Cassan, Bât A, 1er étage.
Pour suggérer un titre et envoyer un abstract, contacter 
et 
.
Coffee seminars are supposed to be short and informal presentations (20 min).
Please never last longer than 30 min and check the compatibility of the projector with your computer before the seminar.
Location : Campus Jussieu, Barre Cassan, Bât A, 1er étage
7 quai Saint Bernard
75005 Paris
To suggest a title or send an abstract, please contact and
| 5 mars | Cecilia Herrero - LPENS How Do Ultrastable Glasses Return to Equilibrium ? Microscopic Insights into Devitrification Glasses are amorphous solids that remain out of equilibrium over long timescales. Their physical properties slowly evolve, and understanding how they relax toward equilibrium is a central problem in condensed matter physics. Ultrastable glasses access deeply supercooled states with very high kinetic stability. When heated, these materials transform back into liquids through a process known as devitrification, yet the microscopic mechanisms governing this transformation are not fully understood. In this seminar, I will present molecular dynamics simulations that probe the spatiotemporal evolution of deeply supercooled liquids after a rapid temperature increase. We find that relaxation does not occur uniformly throughout the system, but proceeds through spatially heterogeneous dynamics with clear similarities to crystal melting. The transformation unfolds in distinct stages, generates large dynamic length scales, and deviates from standard kinetic descriptions. Our results are in good agreement with experimental observations of ultrastable glass melting and, beyond reproducing the phenomenology, provide a physical understanding of the mechanisms controlling the transformation. |
| 12 mars | Julia Dal Pont et Régis Rosmade - ESPCI |
| 19 mars | Nicolas Lobato-Dauzier - LJP |
| 26 mars | Emanuel Bertrand - ESPCI & SPHERE |
