377 citations · 1.6k across the 33 of their papers we have counts for
31 papers
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…
Realization and Topological Properties of Third-Order Exceptional Lines Embedded in Exceptional Surfaces
Weiyuan Tang, Kun Ding, Guancong Ma
As the counterpart of Hermitian nodal structures, the geometry formed by exceptional points (EPs), such as exceptional lines (ELs), entails intriguing spectral topology. We report…
Non-Hermitian eigenvalue knots and their isotopic equivalence
Zhen Li, Kun Ding, Guancong Ma
The spectrum of a non-Hermitian system generically forms a two-dimensional complex Riemannian manifold with distinct topology from the underlying parameter space. Spectral topology…
Noncontact frictional force between surfaces by peristaltic permittivity modulation
Daigo Oue, Kun Ding, J. B. Pendry
In this study, we reveal noncontact frictional forces between surfaces in the presence of peristaltic permittivity modulation. Our setup comprises a conducting medium, an air gap,…
Exceptional Non-Abelian Topology in Multiband Non-Hermitian Systems
Cui-Xian Guo, Shu Chen, Kun Ding +1
Defective spectral degeneracy, known as exceptional point (EP), lies at the heart of various intriguing phenomena in optics, acoustics, and other nonconservative systems. Despite e…
Experimental Realization of Non-Abelian Permutations in a Three-State Non-Hermitian System
Weiyuan Tang, Kun Ding, Guancong Ma
Eigenstates of a non-Hermitian system exist on complex Riemannian manifolds, with multiple sheets connecting at branch cuts and exceptional points (EPs). These eigenstates can evol…