Tunneling spectroscopy of Majorana-Kondo devices

TL;DR

This paper investigates how Majorana bound states in Luttinger-liquid nanowire systems influence the local density of states, revealing interaction-enhanced effects with unique exponents that can be experimentally observed.

Contribution

It provides new insights into the interplay between Majorana states, Kondo physics, and electron interactions in nanowire systems, highlighting observable tunneling signatures.

Findings

Electron interactions enhance low-energy LDOS near the island.

Unusual exponents in LDOS due to Kondo effects.

Potential for experimental tunneling detection.

Abstract

We study the local density of states (LDOS) in systems of Luttinger-liquid nanowires connected to a common mesoscopic superconducting island, in which Majorana bound states give rise to different types of topological Kondo effects. We show that electron interactions enhance the low-energy LDOS in the leads close to the island, with unusual exponents due to Kondo physics that can be probed in tunneling experiments.