Chiral Majorana Interference as a Source of Quantum Entanglement

TL;DR

This paper proposes a novel interferometry setup utilizing chiral Majorana modes to generate, manipulate, and detect electron-hole entanglement in mesoscopic systems, with potential for experimental verification via current correlations.

Contribution

It introduces a new interferometric method leveraging chiral Majorana modes for entanglement production and detection in electron-hole systems, advancing quantum information processing.

Findings

Maximally entangled electron-hole states can be produced via two-particle interferometry.

Entanglement witnesses can be extracted from current cross-correlation measurements.

The setup enables manipulation of entanglement using chiral Dirac and Majorana channels.

Abstract

Interferometry is a powerful tool for entanglement production and detection in multiterminal mesoscopic systems. Here we propose a setup to produce, manipulate and detect entanglement in the electron-hole degree of freedom by exploiting Andreev reflection on chiral one-dimensional channels via interferometry. We study the best possible case in which two-particle interferometry produces superpositions of maximally entangled states. This is achieved by mixing chiral Dirac channels through chiral Majorana modes. We show that it is possible to extract entanglement witnesses through current cross-correlation measurements.