# Rejuvenation and Memory Effects in a Structural Glass

## TL;DR

This paper demonstrates through numerical simulations that a 3D structural glass model exhibits aging, rejuvenation, and memory effects under temperature cycling, suggesting a complex hierarchical free energy landscape similar to other glassy materials.

## Contribution

It provides the first numerical evidence of complex aging phenomena in a structural glass model, linking these effects to hierarchical free energy landscapes and marginal stability.

## Key findings

- Aging, rejuvenation, and memory effects observed in simulations
- Hierarchical free energy landscape inferred from effects
- Conditions for complex aging dynamics identified

## Abstract

We show numerically that a three-dimensional model for structural glass displays aging, rejuvenation and memory effects when submitted to a temperature cycle. These effects indicate that the free energy landscape of structural glasses may possess the complex hierarchical structure that characterize materials such as spin and polymer glasses. We use the theoretical concept of marginal stability to interpret our results, and explain in which physical conditions a complex aging dynamics can emerge in dense supercooled liquids, paving the way for future experimental studies of complex aging dynamics in colloidal and granular glasses.