Dynamical transition in non-Hermitian Chern insulator
arXiv:2609.35492 · doi:10.1103/kdd6-nnrf
Abstract
We unveil a peculiar dynamical transition for the propagation of wave packets in non-Hermitian Chern insulators, where the evolution of the topological wave packets at the edge is not solely determined by the topological Chern number. Unlike the Hermitian Chern insulator, where a wave packet initiated at the edge propagates along the system boundary, here it may instead penetrate into the bulk. This behavior is attributed to the competition between the localization induced by conventional topology and the non-Hermitian skin effect. Specifically, when the former dominant, the wave packet will evolve along the boundary; otherwise, it will spread into the bulk. These features demonstrate that while the generalized-Brillouin zone framework reliably predicts topological phase transitions, it does not on its own specify the dynamical transitions.
References in corpus (33)
- Exceptional Topology of Non-Hermitian Systems
- Non-Hermitian Physics
- Correspondence between winding numbers and skin modes in non-hermitian systems
- Weyl Exceptional Rings in a Three-Dimensional Dissipative Cold Atomic Gas
- Topological phase transition in non-Hermitian quasicrystals
- Observation of higher-order non-Hermitian skin effect
- Observation of arbitrary topological windings of a non-Hermitian band
- Topology-Induced Spontaneous Non-reciprocal Pumping in Cold-Atom Systems with Loss
- Non-Hermitian Morphing of Topological Modes
- Non-Bloch band collapse and chiral Zener tunneling
- Dynamically encircling an exceptional point in a real quantum system
- Nonunitary Scaling Theory of Non-Hermitian Localization
- Non-Hermitian exceptional Landau quantization in electric circuits
- Dynamics and topology of non-Hermitian elastic lattices with non-local feedback control interactions
- Topological Field Theory of Non-Hermitian Systems
- Defective Edge States and Anomalous Bulk-Boundary Correspondence in non-Hermitian Topological Systems
- Acoustic spin-Chern insulator induced by synthetic spin-orbit coupling with spin conservation breaking
- Non-Hermitian dynamics and nonreciprocity of optically coupled nanoparticles
- Non-Hermitian Pseudo-Gaps
- Non-Hermitian Topological Metamaterials with Odd Elasticity
- Real space topological invariant and higher-order topological Anderson insulator in two-dimensional non-Hermitian systems
- Dynamical Degeneracy Splitting and Directional Invisibility in Non-Hermitian Systems
- Observation of dynamical degeneracy splitting for the non-Hermitian skin effect
- Non-Bloch band theory and bulk-edge correspondence in non-Hermitian systems
- Bulk-Bulk Correspondence in Disordered Non-Hermitian Systems
- Hybrid skin-topological effect induced by eight-site cells and arbitrary adjustment of the localization of topological edge states
- Dynamic skin effects in non-Hermitian systems
- Observation of non-Hermitian antichiral edge currents
- Dissipative Floquet Majorana modes in proximity-induced topological superconductors
- In-situ Imaging of a Single-Atom Wave Packet in Continuous Space
- Point-gap topology with complete bulk-boundary correspondence in dissipative quantum systems
- Modified Generalized-Brillouin-Zone Theory with On-site Disorders
- Anomalous dynamical response of non-Hermitian topological phases