1.2k citations · 4.3k across the 32 of their papers we have counts for
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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…
Critical couplings in topological-insulator waveguide-resonator systems observed in elastic waves
Si-Yuan Yu, Cheng He, Xiao-Chen Sun +7
Waveguides and resonators are core components in the large-scale integration of electronics, photonics, and phononics, both in existing and future scenarios. In certain situations,…
Corner states and topological transitions in two-dimensional higher-order topological sonic crystals with inversion symmetry
Zhan Xiong, Zhi-Kang Lin, Hai-Xiao Wang +4
Macroscopic two-dimensional sonic crystals with inversion symmetry are studied to reveal higher-order topological physics in classical wave systems. By tuning a single geometry par…
Dimensional hierarchy of higher-order topology in three-dimensional sonic crystals
Xiujuan Zhang, Bi-Ye Xie, Hong-Fei Wang +5
Topological phases of matter have been extensively studied for their intriguing bulk and edge properties. Recently, higher-order topological insulators with boundary states that ar…
Visualization of higher-order topological insulating phases in two-dimensional dielectric photonic crystals
Bi-Ye Xie, Guang-Xu Su, Hong-Fei Wang +6
The studies of topological phases of matter have been extended from condensed matter physics to photonic systems, resulting in fascinating designs of robust photonic devices. Recen…
Topological Sound
Xiujuan Zhang, Meng Xiao, Ying Cheng +2
Recently, we witnessed a tremendous effort to conquer the realm of acoustics as a possible playground to test with sound waves topologically protected wave propagation. Acoustics d…
Observation of second-order topological insulators in sonic crystals
Xiujuan Zhang, Hai-Xiao Wang, Zhi-Kang Lin +5
Topological insulators with unique gapless edge states have revolutionized the understanding of electronic properties in solid materials. These gapless edge states are dictated by…
Experimental Observation of Acoustic Weyl Points and Topological Surface States
Hao Ge, Xu Ni, Yuan Tian +6
Weyl points emerge as topological monopoles of Berry flux in the three-dimensional (3D) momentum space and have been extensively studied in topological semimetals. As the underlyin…
Topological Node-Lines in Mechanical Metacrystals
Zhan Xiong, Hai-Xiao Wang, Jinjie Shi +4
Topological acoustic and elastic waves have recently emerged as an exciting interdisciplinary field which is still mainly focused on low-dimensional structures and model systems. H…
A Monolithic Topologically Protected Phononic Circuit
Si-Yuan Yu, Cheng He, Zhen Wang +6
Precise control of elastic waves in modes and coherences is of great use in reinforcing nowadays elastic energy harvesting/storage, nondestructive testing, wave-mater interaction,…
Zone folding induced topological insulators in phononic crystals
Yuanchen Deng, Hao Ge, Yuan Tian +2
This letter investigates a flow-free, pseudospin-based acoustic topological insulator. Zone folding, a strategy originated from photonic crystal, is used to form double Dirac cones…
Acoustic topological insulator and robust one-way sound transport
Cheng He, Xu Ni, Hao Ge +6
Discovery of novel topological orders of condensed matters is of a significant interest in both fundamental and applied physics due to the associated quantum conductance behaviors…
Accidental degeneracy of double Dirac cones in a phononic crystal
Ze-Guo Chen, Xu Ni, Ying Wu +5
Artificial honeycomb lattices with Dirac cone dispersion provide a macroscopic platform to study the massless Dirac quasiparticles and their novel geometric phases. In this paper,…