Title: Memory of Soft Particle Glasses

Abstract

Disordered materials such as glasses, gels, granular materials remember their mechanical history: they trap residual stresses, store directional memories, and age. A lot of efforts have been devoted to encode information in glasses, but the preparation of materials free of memory remains a great challenge. In this talk, we will describe a theoretical framework that connects the long time evolution of soft colloidal glasses to the microscopic stress statistics. This leads us to invent training methods that efficiently anneal the mechanical history of soft glasses. Preliminary results are presented for several amorphous materials with various microstructures.