1k citations · 11.4k across the 171 of their papers we have counts for
172 papers
Fragility of surface states in non-Wigner Dyson topological insulators
Alexander Altland, Piet W. Brouwer, Johannes Dieplinger +3
Topological insulators and superconductors support extended surface states protected against the otherwise localizing effects of static disorder. Specifically, in the Wigner-Dyson…
Homotopic classification of band structures: Stable, fragile, delicate, and stable representation-protected topology
Piet W. Brouwer, Vatsal Dwivedi
The topological classification of gapped band structures depends on the particular definition of topological equivalence. For translation-invariant systems, stable equivalence is d…
Non-Abelian holonomy of Majorana zero modes coupled to a chaotic quantum dot
Max Geier, Svend Krøjer, Felix von Oppen +3
If a quantum dot is coupled to a topological superconductor via tunneling contacts, each contact hosts a Majorana zero mode in the limit of zero transmission. Close to a resonance…
Fermi-arc metals
Maxim Breitkreiz, Piet W. Brouwer
We predict a novel metallic state of matter that emerges in a Weyl-semimetal superstructure with spatially varying Weyl-node positions. In the new state, the Weyl nodes are stretch…
Hinge States of Second-Order Topological Insulators as a Mach-Zehnder Interferometer
Adam Yanis Chaou, Piet W. Brouwer, Nicholas Sedlmayr
Three-dimensional higher-order topological insulators can have topologically protected chiral modes propagating on their hinges. Hinges with two co-propagating chiral modes can ser…
Finite-frequency spin conductance of a ferro-/ferrimagnetic-insulator|normal-metal interface
David A. Reiss, Piet W. Brouwer
The interface between a ferro-/ferrimagnetic insulator and a normal metal can support spin currents polarized collinear with and perpendicular to the magnetization direction. The f…