Information based on photons has great advantages; photons interact only very weakly with the environment - unlike electrons, so photons do not lose much energy along the way and can therefore be sent over long distances. Photons are therefore very well suited for carrying and distributing information and a quantum network based on photons will be able to encode much more information than is possible with current computer technology and the information could not be intercepted en route.
Read more at: https://phys.org/news/2017-01-photonic-quantum-network.html#jCp
