5 papers · 1 filter
Flux-induced Aharonov-Bohm Oscillation in the Tunneling Spectroscopy of Kitaev Spin Liquids
Wen-Han Kao, Elio J. König
Identifying emergent flux excitations and signatures of their mutual statistics with itinerant Majorana fermions remains a central challenge in Kitaev spin liquids. We show that an…
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…
Multichannel topological Kondo models and their low-temperature conductances
Guangjie Li, Elio J. König, Jukka I. Väyrynen
In the multichannel Kondo effect, overscreening of a magnetic impurity by conduction electrons leads to a frustrated exotic ground state. It has been proposed that multichannel top…
Relevance of Anisotropy in the Kondo Effect: Lessons From the Symplectic Case
Matan Lotem, Sarath Sankar, Tianhao Ren +5
A Kondo model with symplectic symmetry was recently put forward as the effective low-energy theory of a superconducting-island device coupled to multiple leads. This model, which p…
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…