论文标题
二维结构玻璃的非音频谱
Nonphononic spectrum of two-dimensional structural glasses
论文作者
论文摘要
在最近的文献中,已经争论了二维结构玻璃的非音频振动光谱的低频机翼的缩放形式和系统大小的依赖性。在这里,我们提供了数值证据,表明低频非频率振动频谱的预取剂$ a _ {\ rm g} $ - 后者从零频率($ω\!= \!0 $)增长为$系统大小的依赖性如三维结构玻璃所示。
The scaling form and system-size dependence of the low-frequency wing of the nonphononic vibrational spectrum of two-dimensional structural glasses have been debated in recent literature. Here we provide numerical evidence that the prefactor $A_{\rm g}$ of the low-frequency nonphononic vibrational spectrum -- the latter grows from zero frequency ($ω\!=\!0$) as $A_{\rm g}ω^β$ -- is system-size dependent, and that the exponent $β$ exhibits a similar glass-formation-protocol and system-size dependence as seen in three-dimensional structural glasses.