6 papers · 1 filter
From fractional solitons to Majorana fermions in a paradigmatic model of topological superconductivity
N. Traverso Ziani, C. Fleckenstein, L. Vigliotti +2
Majorana bound states are interesting candidates for applications in topological quantum computation. Low energy models allowing to grasp their properties are hence conceptually im…
Formation and detection of Majorana modes in quantum spin Hall trenches
C. Fleckenstein, N. Traverso Ziani, A. Calzona +2
We propose a novel realization for a topologically superconducting phase hosting Majorana zero-modes on the basis of quantum spin Hall systems. Remarkably, our proposal is complete…
Transport signatures of a Floquet topological transition at the helical edge
C. Fleckenstein, N. Traverso Ziani, L. Privitera +2
The manipulation of the helical edge states of two-dimensional topological insulators is crucial for the development of technological applications. Recently, an important step forw…
Interacting topological edge channels
Jonas Strunz, Jonas Wiedenmann, Christoph Fleckenstein +10
Electrical currents in a quantum spin Hall insulator are confined to the boundary of the system. The charge carriers can be described as massless relativistic particles, whose spin…
The invisible Majorana bound state at the helical edge
Christoph Fleckenstein, Felix Keidel, Bjoern Trauzettel +1
The presence of a Majorana bound state in condensed matter systems is often associated to a zero bias peak in conductance measurements. Here, we analyze a system were this paradigm…
Detection of fractional solitons in quantum spin Hall systems
C. Fleckenstein, N. Traverso Ziani, B. Trauzettel
We propose two experimental setups that allow for the implementation and the detection of fractional solitons of the Goldstone-Wilczek type. The first setup is based on two magneti…