Parity dependent Josephson current through a helical Luttinger liquid

We consider a superconductor–two dimensional topological insulator–superconductor junction and study how the 2 π - and 4 π -periodic Josephson currents are affected by the electron–electron interaction. In the long-junction limit the supercurrent can be evaluated by modeling the system as a helical...

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Bibliographic Details
Main Authors: S Barbarino, R Fazio, M Sassetti, F Taddei
Format: Article
Language:English
Published: IOP Publishing 2013-01-01
Series:New Journal of Physics
Online Access:https://doi.org/10.1088/1367-2630/15/8/085025