378 citations · 981 across the 25 of their papers we have counts for
5 papers · 1 filter
Berry curvature inside parity-time-symmetry protected exceptional surface
P. Wang, L. Jin, Z. Song
A three-dimensional non-Hermitian Hamiltonian with parity-time symmetry can exhibit a closed exceptional surface (EP surface) in momentum space, which is a non-Hermitian deformatio…
Edge State, Band Topology, and Time Boundary Effect in the Fine-Grained Categorization of Chern Insulators
H. C. Wu, H. S. Xu, L. C. Xie +1
We predict novel topological phases with broken time-reversal symmetry supporting the coexistence of opposite chiral edge states, which are fundamentally different from the photoni…
Time-reversal symmetric topological metal
L. C. Xie, H. C. Wu, L. Jin +1
Topological metals possess gapless band structures accompanied with nontrivial edge states. Topological metals are created from the topological insulators by adjusting the magnetic…
Topology of anti-parity-time-symmetric non-Hermitian Su-Schrieffer-Heeger model
H. C. Wu, L. Jin, Z. Song
We propose an anti-parity-time (anti-PT ) symmetric non-Hermitian Su-Schrieffer-Heeger (SSH) model, where the large non-Hermiticity constructively creates nontrivial topology and g…
Visualizing Topology of Real-Energy Gapless Phase Arising from Exceptional Point
X. M. Yang, P. Wang, L. Jin +1
The discovery of novel topological phase advances our knowledge of nature and stimulates the development of applications. In non-Hermitian topological systems, the topology of band…