TKM Institutsseminar |
|||
Vortragender: | Gu Zhang |
Datum: | 18.06.2020 12:30 |
---|---|---|---|
Ort: | This talk will take place as an online event |
Zugehörigkeit: | KIT |
Gastgeber: | Prof. Dr. Mirlin |
Abstract
Distinguishing between topological Majorana zero modes and quasi Majorana modes -- trivial low energy Andreev bound states -- is an important step towards realizing topological hybrid nanowire devices. We propose that this distinction can be made by connecting a hybrid nanowire to a dissipative resonant level realized by a quantum dot weakly coupled to high resistance leads. We show that the qualitative temperature scaling of the width of the resonant level zero bias conductance peak provides a signature unique to true Majorana zero modes. The degeneracy induced by a true Majorana zero mode is further shown to stabilize this conductance peak against particle-hole asymmetry.