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An Anonymous Coward writes:

According to a new article in Phys.org https://phys.org/news/2019-02-repulsive-photons.html [phys.org]
Scientist have found a way to make photons repel eachother

Long story short they convert the photons which normally do not interact into to polaritons https://www.nature.com/subjects/polaritons [nature.com]
"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 [starwars.com]

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