7 papers
Majorana bound states in semiconducting nanostructures
Katharina Laubscher, Jelena Klinovaja
In this Tutorial, we give a pedagogical introduction to Majorana bound states (MBSs) arising in semiconducting nanostructures. We start by briefly reviewing the well-known Kitaev c…
Fractional boundary charges with quantized slopes in interacting one- and two-dimensional systems
Katharina Laubscher, Clara S. Weber, Dante M. Kennes +4
We study fractional boundary charges (FBCs) for two classes of strongly interacting systems. First, we study strongly interacting nanowires subjected to a periodic potential with a…
Kramers pairs of Majorana corner states in a topological insulator bilayer
Katharina Laubscher, Danial Chughtai, Daniel Loss +1
We consider a system consisting of two tunnel-coupled two-dimensional topological insulators proximitized by a top and bottom superconductor with a phase difference of between…
Majorana zero modes and their bosonization
Victor Chua, Katharina Laubscher, Jelena Klinovaja +1
The simplest continuum model of a one-dimensional non-interacting superconducting fermionic symmetry-protected topological (SPT) phase is studied in great detail using analytical m…
Majorana and parafermion corner states from two coupled sheets of bilayer graphene
Katharina Laubscher, Daniel Loss, Jelena Klinovaja
We consider a setup consisting of two coupled sheets of bilayer graphene in the regime of strong spin-orbit interaction, where electrostatic confinement is used to create an array…
Fractional Topological Superconductivity and Parafermion Corner States
Katharina Laubscher, Daniel Loss, Jelena Klinovaja
We consider a system of weakly coupled Rashba nanowires in the strong spin-orbit interaction (SOI) regime. The nanowires are arranged into two tunnel-coupled layers proximitized by…