Majorana excitons in a Kitaev chain of semiconductor quantum dots in a nanowire

TL;DR

This paper develops a theoretical model of Majorana excitons in a semiconductor quantum dot chain within a nanowire, revealing Majorana zero modes through absorption spectra analysis.

Contribution

It introduces a novel theoretical framework for Majorana excitons in quantum dot chains and demonstrates how Majorana zero modes can be detected via optical absorption spectra.

Findings

Majorana zero modes are identifiable in absorption spectra.

Theoretical model combines analytical and exact diagonalisation methods.

Majorana excitons influence optical properties of quantum dot chains.

Abstract

We present here a theory of Majorana excitons, photo-excited conduction electron-valence band hole pairs, interacting with Majorana Fermions in a Kitaev chain of semiconductor quantum dots embedded in a nanowire. Using analytical tools and exact diagonalisation methods we identify the presence of Majorana Zero Modes in the nanowire absorption spectra.