Actual research behind the article: https://arxiv.org/abs/2002.01491 https://arxiv.org/abs/2002.01491 This protocol depends on multipartite entanglement, so it

Actual research behind the article: https://arxiv.org/abs/2002.01491 https://arxiv.org/abs/2002.01491 This protocol depends on multipartite entanglement, so it does seem quite far away from being practical for anything yet. If quantum routers were a solved problem and we had a quantum internet (last I checked, we do not), for this we would also need some form of 'coherent multicast routing'.