Reply to Shvaika et al.: Presence of a boson peak in anharmonic phonon models with Akhiezer-type damping

TL;DR

This paper addresses corrections to a previous study on anharmonic phonon models, reaffirming the original prediction of a boson peak caused by anharmonicity despite initial mistakes.

Contribution

It clarifies and corrects earlier errors, confirming the robustness of the boson peak prediction in anharmonic phonon models with damping.

Findings

Original results remain valid after correction

Boson peak predicted due to anharmonicity

Corrections do not alter physical conclusions

Abstract

We reply to the Comment by Svhaika, Ruocco, Schirmacher and collaborators. There were two accidental mistakes in our original paper (Phys. Rev. Lett. 112, 145501 (2019)), which have been now corrected. All the physical conclusions and results of the original paper, including the prediction of boson peak due to anharmonicity, remain valid in the corrected version.