79 citations · 207 across the 13 of their papers we have counts for
13 papers
Extended topological mode in a one-dimensional non-Hermitian acoustic crystal
Xulong Wang, Wei Wang, Guancong Ma
In Hermitian topological systems, topological modes (TMs) are bound to interfaces or defects of a lattice. Recent discoveries show that non-Hermitian effects can reshape the wavefu…
Topological phononics
Zeguo Chen, Tiantian Zhang, Xulong Wang +12
Topological phononics extends the foundational concepts of topological condensed matter physics to the realm of lattice vibrations and classical mechanical waves, unlocking robust,…
Observation of flat-band skin effect
Xulong Wang, Dongyi Wang, Congwei Lu +4
Symmetry-protected ideal flat bands in one-dimensional (1D) Hermitian lattices are populated by compact localized states (CLS) - a special class of localization with wavefunctions…
Topological Braiding of Bloch Eigenmodes Protected by Non-Abelian Quaternion Invariants
Xiao-Ming Wang, Jiaying Xu, Xulong Wang +2
Braiding has attracted significant attention in physics because of its important role in describing the fundamental exchange of particles. Infusing the braiding with topological pr…
Experimental Measurement of Non-Hermitian Left Eigenvectors
Xulong Wang, Guancong Ma
The duality of left and right eigenvectors underpins the comprehensive understanding of many physical phenomena. In Hermitian systems, left and right eigenvectors are simply Hermit…
Exceptional deficiency of non-Hermitian systems
Zhen Li, Xulong Wang, Rundong Cai +5
Exceptional points (EPs) are non-Hermitian singularities associated with the coalescence of individual eigenvectors accompanied by the degeneracy of their complex energies. Here, w…
Experimental Realization of Special-Unitary Operations in Classical Mechanics by Nonadiabatic Evolutions
Congwei Lu, Xulong Wang, Guancong Ma
Artificial classical wave systems such as wave crystals and metamaterials have demonstrated promising capabilities in simulating a wide range of quantum mechanical phenomena. Yet s…
Anderson transition at complex energies in one-dimensional parity-time-symmetric disordered systems
Wei Wang, Xulong Wang, Guancong Ma
The presence of disorder can severely impede wave transport, resulting in the famous Anderson localization. Previous theoretical studies found that Anderson transition can exist in…
Observation of dynamic non-Hermitian skin effects
Zhen Li, Li-Wei Wang, Xulong Wang +3
Non-Hermitian effects have emerged as a new paradigm for the manipulation of phases of matter that profoundly changes our understanding of non-equilibrium systems, introducing nove…
Topological temporal boundary states in a non-Hermitian spatial crystal
Mingwei Li, Jianwei Liu, Xulong Wang +3
Periodic modulation of the material index in time opens momentum gaps. Such systems are regarded as the temporal analogue of common spatial crystals, wherein the bandgaps open in t…
Experimental realization of stable exceptional chains protected by non-Hermitian latent symmetries unique to mechanical systems
Xiaohan Cui, Ruo-Yang Zhang, Xulong Wang +3
Lines of exceptional points are robust in the 3-dimensional non-Hermitian parameter space without requiring any symmetry. However, when more elaborate exceptional structures are co…
Experimental Realization of Geometry-Dependent Skin Effect in a Reciprocal Two-Dimensional Lattice
Wei Wang, Mengying Hu, Xulong Wang +2
Recent studies of non-Hermitian periodic lattices unveiled the non-Hermitian skin effect (NHSE), in which the bulk modes under the periodic boundary conditions (PBC) become skin mo…
Spin-orbit interactions of transverse sound
Shubo Wang, Guanqing Zhang, Xulong Wang +3
Spin-orbit interactions (SOIs) endow light with intriguing properties and applications such as photonic spin-Hall effects and spin-dependent vortex generations. However, it is coun…