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Direct measurement of acoustic spectral density and fractional topological charge
Hao Ge, Zi-Wei Long, Xiang-Yuan Xu +5
Local density-of-states (LDOS) is a fundamental spectral property that plays a central role in various physical phenomena such as wave-matter interactions. Here, we report on the d…
A review on non-Hermitian skin effect
Xiujuan Zhang, Tian Zhang, Ming-Hui Lu +1
The past decades have witnessed the flourishing of non-Hermitian physics in non-conservative systems, leading to unprecedented phenomena of unidirectional invisibility, enhanced se…
Homogeneous Dislocation-Induced Rainbow Concentrating for Elastic Waves
Zi-Dong Zhang, Shi-Li Yang, Shi-Ling Yan +3
Defects play a crucial role in the physical properties of crystals, whether for classical or quantum systems. For example, in photonic/phononic crystals, defects can serve as preci…