223 citations · 357 across the 8 of their papers we have counts for
4 papers · 1 filter
Coupled Topological Interface States and Phonon Molecules in GaAs/AlAs Superlattices
S. Sandeep, O. Colmegna, C. Xiang +5
Topological interface states in one-dimensional superlattices provide spatially localized phonon modes protected by the topology of the underlying band structure. In GaAs/AlAs dist…
Interference of ultrahigh frequency acoustic phonons from distant quasi-continuous sources
C. Xiang, E. R. Cardozo de Oliveira, S. Sandeep +9
The generation of propagating acoustic waves is essential for telecommunication applications, quantum technologies, and sensing. Up to now, the electrical generation has been at th…
Quartic scaling of sound attenuation with frequency in vitreous silica
P. -J. Wang, A. Huynh, T. -C. Hung +8
Many theories predict a quartic acoustic attenuation increase at sub-THz frequencies in glassy media for the excess vibrational modes known as the boson peak anomaly. Here by intro…
Coherent generation and detection of acoustic phonons in topological nanocavities
G. Arregui, O. Ortíz, M. Esmann +7
Inspired by concepts developed for fermionic systems in the framework of condensed matter physics, topology and topological states are recently being explored also in bosonic syste…