175 citations · 642 across the 22 of their papers we have counts for
25 papers · 1 filter
Non-Abelian Hopf-Euler insulators
Wojciech J. Jankowski, Arthur S. Morris, Zory Davoyan +3
We discuss a class of three-band non-Abelian topological insulators in three dimensions that carry a single bulk Hopf index protected by spatiotemporal () inversion s…
Optical manifestations and bounds of topological Euler class
Wojciech J. Jankowski, Arthur S. Morris, Adrien Bouhon +2
We analyze quantum-geometric bounds on optical weights in topological phases with pairs of bands hosting nontrivial Euler class, a multigap invariant characterizing non-Abelian ban…
Comment on "Floquet non-Abelian topological insulator and multifold bulk-edge correspondence"
Robert-Jan Slager, Adrien Bouhon, F. Nur Ünal
We comment on the recent paper ``Floquet non-Abelian topological insulator and multifold bulk-edge correspondence" by Tianyu Li and Haiping Hu, Nat. Comm. {\bf 14}, 6418 (2023). Ap…
Three-dimensional -symmetric topological phases with Pontryagin index
Zory Davoyan, Wojciech J. Jankowski, Adrien Bouhon +1
We report on a certain class of three-dimensional topological insulators and semimetals protected by spinless symmetry, hosting an integer-valued bulk inva…
Disorder-induced topological quantum phase transitions in multi-gap Euler semimetals
Wojciech J. Jankowski, Mohammadreza Noormandipour, Adrien Bouhon +1
We study the effect of disorder in systems having a non-trivial Euler class. As these recently proposed multi-gap topological phases come about by braiding non-Abelian charged band…
Quantum geometry beyond projective single bands
Adrien Bouhon, Abigail Timmel, Robert-Jan Slager
The past few years have seen a revived interest in quantum geometrical characterizations of band structures due to the rapid development of topological insulators and semi-metals.…