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Accueil du site > Évènements > Séminaires > Séminaires IUSTI > Archives IUSTI > 2017

Vendredi 21 Juillet 2017 / IUSTI

publié le , mis à jour le

Séminaire exceptionnel IUSTI

Architecture and Co-Evolution of Allosteric Materials

Orateur : M. Wyart

Abstract:We introduce a numerical scheme to evolve functional elastic materials that can accomplish a specified mechanical task. In this scheme, the number of solutions, their spatial architectures and the correlations among them can be computed. As an example, we consider an “allosteric” task, which requires the material to respond specifically to a stimulus at a distant active site. We find that functioning materials evolve a less-constrained trumpet-shaped region connecting the stimulus and active sites, and that the amplitude of the elastic response varies non-monotonically along the trumpet. As previously shown for some proteins, we find that correlations appearing during evolution alone are sufficient to identify key aspects of this design. Finally, we show that the success of this architecture stems from the emergence of soft edge modes recently found to appear near the surface of marginally connected materials. Overall, our in silico evolution experiment offers a new window to study the relationship between structure, function and correlations emerging during evolution.

Date et lieu : vendredi 21 juillet à 11h en salle 250 à l’IUSTI