Due to the current situation (COVID-19), the guest lectures of the MPQ Colloquium will only take place online until further notice. Details on participation will be sent via the mailing lists [wiss-mpq] and [Mpq-colloquium-stream]. Please register using the adjacent link.

Scientific organization of the talks:  Dr. Stephan Dürr and Dr. Thomas Udem

If you wish to view the live stream of the MPQ colloquium, please use the link to subscribe to the corresponding mailing list. Detailed instructions will be sent to all subscribers.
Speaker: Fan Yang Location: Max-Planck-Institut für Quantenoptik

Topological Superconductivity and Majorana Fermions in Coupled Wires (Fan Yang)

Topological Superconductivity and Majorana Fermions in Coupled Wires
In the first part, we present a theoretical study of the interplay between topological p-wave superconductivity, orbital magnetic fields and quantum Hall phases in coupled wire systems. We consider two-dimensional systems made of weakly coupled ladders. There, we engineer a p+ip superconductor with the chiral Majorana edge current and describe a generalization of the ν = 1/2 fractional quantum Hall phase. These phases might be realized in solid-state or cold-atom nanowires. For the second part, we will address the spin ladder analogs of the Kitaev honeycomb model. A generalized phase diagram for the two-leg ladder system is obtained together with a driven time-dependent protocol based on superconducting box circuits. [more]
Go to Editor View