Comment on "Universal effect of excitation dispersion on the heat capacity and gapped states in fluids"
arXiv:2104.06469 · doi:10.1103/PhysRevLett.126.229601
Abstract
We discuss the validity of recent results in [Phys. Rev. Lett. 125, 125501 (2020)] on an universal relation between the heat capacity and dispersions of collective excitations in liquids.
7 pages, 4 figures