Description
Recent advances in growing complex structures of topological
superconducting nanowires have paved the way for exploring
new physics beyond the immediate application of finding
Majorana modes. In our work we studied setups involving a
superconducting island with multiple Majorana modes
connected to normal leads. I will explain how coherent effects
give rise to a family of non-Fermi liquid states similar to the
multiple channel Kondo problem. These states are remarkably
stable and persist even in the resonant regime, defying
conventional wisdom. As a direct consequence we predict a
universal, gate-voltage independent conductance in these
systems that develops at relatively high temperatures. Our
results make the implementation of various devices more
feasible, and we expect our observation to shift the paradigm
in designing protocols for braiding Majorana modes and
quantum computation away from focusing solely on the off-
resonant regime.
