A Local Area Quantum Teleportation Network Based on an Array of Electrically Activated Graphene Waveguide

TL;DR

This paper proposes a quantum teleportation network using an array of graphene waveguides activated by microwave modes to generate multipartite entangled states, enabling secure, high-fidelity quantum communication.

Contribution

It introduces a novel scheme for creating multipartite Gaussian entangled states with graphene waveguides and demonstrates secure quantum teleportation across remote nodes.

Findings

Achieves teleportation fidelity above 2/3 threshold

Enables secure quantum networking despite losses

Uses plasmonic graphene waveguides for entanglement generation

Abstract

We present a scheme to generate a continuous variable (CV) multipartite entangled state using an array of plasmonic graphene waveguides that are activated by nonclassical driving microwave modes. Within this scheme, we can exploit the interaction of two light fields coupled to the same microwave mode in each waveguide to produce any type of multipartite Gaussian entangled state. A teleportation network is illustrated using the resultant CV multipartite entangled state. In particular, the proposed setup enables coherent state teleportation across remotely connected nodes with fidelity above a threshold limit of 2/3, providing secure quantum teleportation networking even in the presence of losses.