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arXiv · 1511.06319

Luttinger liquid in contact with a Kramers pair of Majorana bound states

Dmitry I. Pikulin·Yashar Komijani·Ian Affleck
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Abstract

We discuss the signatures of a Kramers pair of Majorana modes formed in a Josephson junction on top of a quantum spin Hall system. We show that, while ignoring interactions on the quantum spin Hall edge allows arbitrary Andreev process in the system, moderate repulsive interactions stabilize Andreev transmission - the hole goes into the opposite lead from where the electron has arrived. We analyze the renormalization group equations and deduce the existence of a non-trivial critical point for sufficiently strong interactions.

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Dmitry I. Pikulin, Yashar Komijani, Ian Affleck. 2016-05-02. Luttinger liquid in contact with a Kramers pair of Majorana bound states. https://doi.org/10.1103/physrevb.93.205430

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