Tunneling between helical Majorana modes and helical Luttinger liquids

Article

关键词: HGTE QUANTUM-WELLS;    TOPOLOGICAL INSULATORS;    FERMIONS;    SUPERCONDUCTORS;   

DOI  :  10.1103/PhysRevB.91.235125

来源: SCIE

【 摘 要 】

We propose and study the charge transport through single and double quantum point contacts setup between helical Majorana modes and an interacting helical Luttinger liquid. We show that the differential conductance decreases for stronger repulsive interactions and that the point contacts become insulating above a critical interaction strength. For a single-point contact, the differential conductance as a function of bias voltage shows a series of peaks due to Andreev reflection of electrons in the Majorana modes. In the case of two point contacts, interference phenomena make the structure of the individual resonance peaks less universal and showmodulations with different separation distance between the contacts. For small separation distance, the overall features remain similar to the case of a single-point contact.

【 授权许可】

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