Non-abelian hopf-euler insulators
We discuss a class of three-band non-Abelian topological insulators in three dimensions
that carry a single bulk Hopf index protected by spatiotemporal (PT) inversion symmetry …
that carry a single bulk Hopf index protected by spatiotemporal (PT) inversion symmetry …
Quantization of intraband and interband Berry phases in the shift current
A Alexandradinata - Physical Review B, 2024 - APS
The theory of the shift current is thus far geometrical without being topological. This means
that the real-space displacement of a photoexcited quasiparticle depends on the geometric …
that the real-space displacement of a photoexcited quasiparticle depends on the geometric …