Non-Hermitian (NH) crystals, quasicrystals, and amorphous network display an accumulation of a macroscopic number of states near one of its specific interfaces with vacuum, such as edge, surface, hinge, or corner. This phenomenon is known as the NH skin effect, which can only be observed ...
Topological modes (TMs) are usually localized at defects or boundaries of a much larger topological lattice1,2. Recent studies of non-Hermitian band theories unveiled the non-Hermitian skin effect (NHSE), by which the bulk states collapse to the boundary
& Zhai, Y. Non-Hermitian Weyl semimetals: non-Hermitian skin effect and non-Bloch bulk–boundary correspondence. Chin. Phys. B 31, 010308 (2022). Article ADS Google Scholar Weidemann, S., Kremer, M., Longhi, S. & Szameit, A. Topological triple phase transition in non-Hermitian ...
Experimental demonstration of the non-Hermitian skin effect. Article ADS MathSciNet CAS PubMed MATH Google Scholar Gao, P., Willatzen, M. & Christensen, J. Anomalous topological edge states in non-Hermitian piezophononic media. Phys. Rev. Lett. 125, 206402 (2020). Article ADS CAS PubMed...
The bulk-boundary correspondence is among the central issues of non-Hermitian topological states. We show that a previously overlooked `non-Hermitian skin effect' necessitates redefinition of topological invariants in a generalized Brill... S Yao,Z Wang - 《Physical Review Letters》 被引量: 4发表...
Non-Hermitian photonics and topological photonics, as new research fields in optics, have attracted much attention in recent years, accompanying by a great deal of new physical concepts and novel effects emerging. The two fields are gradually crossed dur
All the eigenmodes localize around the left edge due to JL>JR(non-Hermitian skin effect). (E) Possible realization of asymmetric hopping in a coupled ring cavity system [132], [133]. The ancillary ring with distributed gain and loss (center) induces imaginary gauge fields (effective ...
non‐Hermitian topological phase transitionsThe topological properties of a generalized non〩ermitian Su–Schrieffer–Heeger model are investigated and it is demonstrated that the non〩ermitian phase transition and the non〩ermitian skin effect can be induced by intraヽell asymmetric coupling under open...
Non-Hermitian route to higher-order topology in an acoustic crystal. Nat. Commun. 12, 1888 (2021). Article CAS Google Scholar Zhang, X., Tian, Y., Jiang, J.-H., Lu, M.-H. & Chen, Y.-F. Observation of higher-order non-Hermitian skin effect. Nat. Commun. 12, 5377 (2021)....
Non-Hermitian band theory naturally arises in active materials because energy is both consumed and dissipated, resulting in the presence of skin modes and odd viscoelasticity. The full potential of these ideas extends from the fundamental understanding of topology in non-equilibrium systems to applicatio...