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Strongly interacting Majorana fermions
Ching-Kai Chiu, D. I. Pikulin, M. Franz
Interesting phases of quantum matter often arise when the constituent particles -- electrons in solids -- interact strongly. Such strongly interacting systems are however quite rar…
Nontrivial surface topological physics from strong and weak topological insulators and superconductors
Ching-Kai Chiu
We investigate states on the surface of strong and weak topological insulators and superconductors that have been gapped by a symmetry breaking term. The surface of a strong 3D top…
Classification of reflection symmetry protected topological semimetals and nodal superconductors
Ching-Kai Chiu, Andreas P. Schnyder
While the topological classification of insulators, semimetals, and superconductors in terms of nonspatial symmetries is well understood, less is known about topological states pro…
Majorana fermion exchange in strictly one dimensional structures
Ching-Kai Chiu, M. M. Vazifeh, M. Franz
It is generally thought that adiabatic exchange of two identical particles is impossible in one spatial dimension. Here we describe a simple protocol that permits adiabatic exchang…