We analyze the generation of entanglement in a multipartite optical network. We generalize the twin-field strategy to the multipartie case and show that our protocol has advantageous rate-loss scalings of distributing W states and Dicke states over the star networks. We give precise theoretical formulas and quantitative performance analyses. Also analysis of the same protocol using Gaussian states as resources, which is a typical setup of many experimental tests, is provided.
@article{arxiv.2211.15138,
title = {Efficient Dicke state generation in a network of lossy channels},
author = {Wojciech Roga and Rikizo Ikuta and Tomoyuki Horikiri and Masahiro Takeoka},
journal= {arXiv preprint arXiv:2211.15138},
year = {2023}
}