Supercooled liquids are Fickian yet non-Gaussian

TL;DR

This paper defends previous findings that supercooled liquids exhibit Fickian yet non-Gaussian diffusion, confirming the validity and novelty of the original results against critiques.

Contribution

It clarifies and reaffirms the existence of Fickian non-Gaussian diffusion in glass-forming liquids, countering prior criticisms.

Findings

Confirmed the existence of Fickian non-Gaussian diffusion in glass-forming liquids.

Demonstrated that previous critiques are incorrect or irrelevant.

Validated the original results and their significance.

Abstract

Reply to "Comment on 'Fickian non-Gaussian diffusion in glass-forming liquids' ". In [ArXiv:2210.07119v1], Berthier et al. questioned the findings of our letter [Phys. Rev. Lett. 128, 168001 (2022)], concerning the existence and the features of Fickian non-Gaussian diffusion in glass-forming liquids. Here we demonstrate that their arguments are either wrong, or not meaningful to our scope. Thus, we fully confirm the validity and novelty of our results.