Reference : Tunneling between helical Majorana modes and helical Luttinger liquids
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Tunneling between helical Majorana modes and helical Luttinger liquids
Chao, Sung-Po [National Center for Theoretical Science, Taiwan]
Schmidt, Thomas mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Chung, Chung-Hou [National Center for Theoretical Science, Taiwan]
Physical Review B
American Physical Society
Yes (verified by ORBilu)
[en] 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 show modulations with different separation distance between the contacts. For small separation distance, the overall features remain similar to the case of a single-point contact.

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