The more interesting question may be what innovation was achieved in performing the experiment, mainly I assume, in controlling and measuring the large number of photons accurately. Hints on those seem to be Fig. 2 [1].

In the spirit of sensationalizing "China" and "supremacy", does anyone know if this technology is relevant to some Star Wars weaponry for example?

[1] https://science.sciencemag.org/content/early/2020/12/02/scie...