Physical model for the generation of ideal resources in multipartite quantum networking

TL;DR

This paper introduces a physical model for generating multipartite entangled states of spin-$s$ particles, enabling scalable quantum networking and applications like quantum telecloning and GHZ state preparation.

Contribution

It presents a novel protocol using mobile spins to induce interactions among remote stationary spins for scalable entanglement generation.

Findings

Generated N-qubit singlet states for optimal quantum telecloning.

Demonstrated preparation of GHZ states.

Showed the protocol's scalability and controllability.

Abstract

We propose a physical model for generating multipartite entangled states of spin-$s$ particles that have important applications in distributed quantum information processing. Our protocol is based on a process where mobile spins induce the interaction among remote scattering centers. As such, a major advantage lies on the management of stationary and well separated spins. Among the generable states, there is a class of $N$-qubit singlets allowing for optimal quantum telecloning in a scalable and controllable way. We also show how to prepare Aharonov, W and Greenberger-Horne-Zeilinger states.