We propose a complete architecture for deterministic generation of entangled multiphoton states. Our approach utilizes periodic driving of a quantum-dot emitter and an efficient light-matter interface enabled by a photonic crystal waveguide. We assess the quality of the photonic states produced from a real system by including all intrinsic experimental imperfections. Importantly, the protocol is robust against the nuclear spin bath dynamics due to a naturally built-in refocussing method reminiscent to spin echo. We demonstrate the feasibility of producing Greenberger-Horne-Zeilinger and one-dimensional cluster states with fidelities and generation rates exceeding those achieved with conventional 'fusion' methods in current state-of-the-art experiments. The proposed hardware constitutes a scalable and resource-efficient approach towards implementation of measurement-based quantum communication and computing.
@article{arxiv.2007.09295,
title = {High-fidelity multi-photon-entangled cluster state with solid-state quantum emitters in photonic nanostructures},
author = {Konstantin Tiurev and Martin Hayhurst Appel and Pol Llopart Mirambell and Mikkel Bloch Lauritzen and Alexey Tiranov and Peter Lodahl and Anders Søndberg Sørensen},
journal= {arXiv preprint arXiv:2007.09295},
year = {2024}
}