# Anomalous Nonlocal Conductance as a Fingerprint of Chiral Majorana Edge States

## TL;DR

This paper proposes a definitive experimental method to detect chiral Majorana edge states via anomalous nonlocal conductance measurements in a device with a chiral p-wave superconductor and ferromagnetic leads, highlighting their unique long-range and directional transport properties.

## Contribution

It introduces a theoretical framework for a smoking-gun experiment to identify chiral Majorana edge states through nonlocal conductance signatures in a specific device setup.

## Key findings

- Chiral Majorana edge states cause long-range nonlocal conductance.
- Nonlocal conductance is sensitive to the chirality of edge states.
- The proposed experiment can determine the direction of edge state propagation.

## Abstract

Chiral $p$-wave superconductor is the primary example of topological systems hosting chiral Majorana edge states. Although candidate materials exist, the conclusive signature of chiral Majorana edge states has not yet been observed in experiments. Here we propose a smoking-gun experiment to detect the chiral Majorana edge states on the basis of theoretical results for the nonlocal conductance in a device consisting of a chiral $p$-wave superconductor and two ferromagnetic leads. The chiral nature of Majorana edge states causes an anomalously long-range and chirality-sensitive nonlocal transport in these junctions. These two drastic features enable us to identify the moving direction of chiral Majorana edge states in the single experimental setup.