论文标题
评论“液体GA中的集体模式和动量状态，实验，理论和模拟”
Comment on "Collective modes and gapped momentum states in liquid Ga: Experiment, theory, and simulation"
论文作者
论文摘要
我们表明，在Phys.Rev.B，V.101，214312（2020）纵向电流光谱函数$ C^l（K，ω）$和集体激发的分散的理论表达不正确。确实，它们与连续限制不兼容，$ c^l（k，ω\ to 0）$与连续性方程相矛盾。
We show that the presented in Phys.Rev.B, v.101, 214312 (2020) theoretical expressions for longitudinal current spectral function $C^L(k,ω)$ and dispersion of collective excitations are not correct. Indeed, they are not compatible with the continuum limit and $C^L(k,ω\to 0)$ contradicts the continuity equation.
