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Multi-Terminal Coulomb-Majorana Junction by Altland, Alexander; Egger, Reinhold is a scholarly article available to read on EtoBox.

What is Multi-Terminal Coulomb-Majorana Junction about?

We study multiple helical nanowires in proximity to a common mesoscopic superconducting island, where Majorana fermion bound states are formed. We show that a weak finite charging energy of the center island may dramatically affect the low-energy behavior of the system. While for strong charging interactions, the junction decouples the connecting wires, interactions lower than a non-universal threshold may trigger the flow towards an exotic Kondo fixed point. In either case, the ideally Andreev reflecting fixed point characteristic for infinite capacitance (grounded) devices gets destabilized by interactions.

Author

Altland, Alexander; Egger, Reinhold

Published

2012

Language

EN