# Tunneling Current Measurement Scheme to Detect Majorana Zero Mode Induced Crossed Andreev Reflection

## TL;DR

This paper proposes a tunneling current measurement scheme using a metallic ring to detect Majorana zero modes via crossed Andreev reflection, observing flux-dependent current peaks.

## Contribution

It introduces a novel experimental setup with a metallic ring to directly measure Majorana-induced crossed Andreev reflection through tunneling current.

## Key findings

- Detection of flux-dependent positive and negative current peaks
- Distinct wave vector propagation of electrons and holes enables measurement
- Potential for improved Majorana zero mode detection methods

## Abstract

We propose a scheme to detect the Majorana-zero-mode-induced crossed Andreev reflection by measuring tunneling current directly. In this scheme a metallic ring structure is utilized to separate electron and hole signals. Since tunneling electrons and holes have different propagating wave vectors, the conditions for them to be constructively coherent in the ring differ. We find that when the magnetic flux threading the ring varies, it is possible to observe adjacent positive and negative current peaks of almost equal amplitudes.