Amorphous solids lack long-range order. Therefore identifying structural defects—akin to
dislocations in crystalline solids—that carry plastic flow in these systems remains a daunting …

Glassy solids exhibit a wide variety of generic thermomechanical properties, ranging from
universal anomalous specific heat at cryogenic temperatures to nonlinear plastic yielding …

Amorphous silicon (a-Si) is an important thermal-management material and also serves as
an ideal playground for studying heat transport in strongly disordered materials. Theoretical …

It has been recently established that the low-frequency spectrum of simple computer glass
models is populated by soft, quasilocalized nonphononic vibrational modes whose …

We study a recently introduced and exactly solvable mean-field model for the density of
vibrational states D (ω) of a structurally disordered system. The model is formulated as a …

Being able to predict the failure of materials based on structural information is a fundamental
issue with enormous practical and industrial relevance for the monitoring of devices and …

Nonphononic vibrations originating from disordered structures have garnered significant
attention as a fundamental feature of glasses that distinguishes them from crystals. Recently …

Glasses possess more low-frequency vibrational modes than predicted by Debye theory.
These excess modes are crucial for the understanding of the low temperature thermal and …

The vibrational density of states of glasses is considerably different from that of crystals. In
particular, there exist spatially localized vibrational modes in glasses. The density of states …

Structural glasses feature quasilocalized excitations whose frequencies $\omega $ follow a
universal density of states ${\cal D}(\omega)\!\sim\!\omega^ 4$. Yet, the underlying physics …