Multipartite electronic entanglement purification with charge detection

TL;DR

This paper proposes a multipartite entanglement purification protocol for electrons using charge detection, enabling high-fidelity GHZ states through iterative error correction steps for quantum communication.

Contribution

It introduces a novel purification scheme for multipartite electron entanglement based on spin and charge detection, with a two-step error correction process.

Findings

Effective purification of GHZ states achieved

High-fidelity multipartite entangled systems obtained

Scheme applicable for quantum communication networks

Abstract

We present a multipartite entanglement purification scheme in a Greenberger-Horne-Zeilinger state for electrons based on their spins and their charges. This scheme works for purification with two steps, i.e., bit-flipping error correction and phase-error flip error correction. By repeating these two steps, the parties in quantum communication can get some high-fidelity multipartite entangled electronic systems.