2 citations · 2 across the 1 of their papers we have counts for
5 papers
Bulk-corner correspondence of time-reversal symmetric insulators: deduplicating real-space invariants
Sander H. Kooi, Guido van Miert, Carmine Ortix
The topology of insulators is usually revealed through the presence of gapless boundary modes: this is the so-called bulk-boundary correspondence. However, the many-body wavefuncti…
Classification of crystalline insulators without symmetry indicators: atomic and fragile topological phases in twofold rotation symmetric systems
Sander H. Kooi, Guido van Miert, Carmine Ortix
Topological crystalline phases in electronic structures can be generally classified using the spatial symmetry characters of the valence bands and mapping them onto appropriate sym…
Inversion-symmetry protected chiral hinge states in stacks of doped quantum Hall layers
Sander H. Kooi, Guido van Miert, Carmine Ortix
We prove the existence of higher-order topological insulators with protected chiral hinge modes in quasi-two-dimensional systems made out of coupled layers stacked in an inversion-…
Genesis of the Floquet Hofstadter butterfly
S. H. Kooi, A. Quelle, W. Beugeling +1
We investigate theoretically the spectrum of a graphene-like sample (honeycomb lattice) subjected to a perpendicular magnetic field and irradiated by circularly polarized light. Th…
Quantum Valley Hall Effect in Massive Dirac Systems Coupled to a Scalar Field
S. H. Kooi, N. Menezes, Van Sérgio Alves +1
We use Pseudo Quantum Electrodynamics to study massive (2+1)D Dirac systems interacting electromagnetically via a U(1) gauge field in (3+1)D. It was recently found in Ref. [1], tha…