According to a new article in Phys.org https://phys.org/news/2019-02-repulsive-photons.html
Scientist have found a way to make photons repel each other
Long story short they convert the photons which normally do not interact into polaritons: https://www.nature.com/subjects/polaritons "Polaritons are hybrid particles made up of a photon strongly coupled to an electric dipole" and this allows the photons to repel since they have charge.
Looks like my light saber really can be made. Now I just need to find a source for Kyber Crystals https://www.starwars.com/databank/lightsaber-crystal
(Score: 2) by bob_super on Wednesday February 27 2019, @06:18AM
I have the opposite finding : The absence of photon source reduces the repulsion.
*sobs*