These are "quasiparticles" [0] of which there are quite a few others [1] with very interesting properties. Unfortunately I do not see enough of the article to b

These are "quasiparticles" [0] of which there are quite a few others [1] with very interesting properties. Unfortunately I do not see enough of the article to be able to comment more on it. [0] https://en.wikipedia.org/wiki/Quasiparticle https://en.wikipedia.org/wiki/Quasiparticle [1] https://en.wikipedia.org/wiki/List_of_quasiparticles https://en.wikipedia.org/wiki/List_of_quasiparticles