14 citations · 22 across the 4 of their papers we have counts for
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Phases of Quasi-One-Dimensional Fractional Quantum (Anomalous) Hall - Superconductor Heterostructures
Steffen Bollmann, Andreas Haller, Jukka I. Väyrynen +2
Motivated by recent observations of fractional Chern insulators (FCIs) in the vicinity of superconducting (SC) phases, we study fractional quantum (anomalous) Hall-superconductor h…
Quantum Restored Symmetry Protected Topological Phases
Dhruv Tiwari, Steffen Bollmann, Sebastian Paeckel +1
Symmetry protected topological (SPT) phases are fundamental quantum many-body states of matter beyond Landau's paradigm. Here, we introduce the concept of quantum restored SPTs (QR…
Topological Kondo effect with spinful Majorana fermions
Steffen Bollmann, Jukka I. Väyrynen, Elio J. König
Motivated by the importance of studying topological superconductors beyond the mean-field approximation, we here investigate mesoscopic islands of time reversal invariant topologic…
Topological Green's function zeros in an exactly solved model and beyond
Steffen Bollmann, Chandan Setty, Urban F. P. Seifert +1
The interplay of topological electronic band structures and strong interparticle interactions provides a promising path towards the constructive design of robust, long-range entang…