Probing Majorana and Andreev Bound States with Waiting Times

TL;DR

This paper demonstrates that the waiting time distribution of electrons in a biased Normal-Superconducting junction can serve as a clear experimental signature of Majorana bound states, depending on the superconductivity class.

Contribution

It introduces the use of waiting time distributions as a novel method to identify Majorana bound states in various superconducting junctions.

Findings

Waiting time distribution reveals signatures of Majorana bound states.

Different superconductivity classes affect the electron waiting times.

Waiting times can distinguish between Majorana and Andreev bound states.

Abstract

We consider a biased Normal-Superconducting junction with various types of superconductivity. Depending on the class of superconductivity, a Majorana bound state may appear at the interface. We show that this has important consequences on the distribution of waiting times of electrons flowing out of such an interface. Therefore, the waiting time distribution is shown to be a clear fingerprint of Majorana bound state physics and may be considered as an experimental signature of its presence.