I was curious what was up with the word demon in this context. Originally I thought it might have to do with Maxwell's Demon, but then I read this from Wikipedi

I was curious what was up with the word demon in this context. Originally I thought it might have to do with Maxwell's Demon, but then I read this from Wikipedia: "Pines explained his terminology by making the term a half backronym because particles commonly have suffix "-on" and the excitation involved distinct electron motion, resulting in D.E.M.on, or simply demon for short." so then I thought it was something else but... "The out-of-phase excitation was termed the "demon" by Pines after James Clerk Maxwell, since he thought Maxwell "lived too early to have a particle or excitation named in his honor." So apparently the demon does have to do with Maxwell's Demon, but is clever wordplay intended to honor it! https://en.wikipedia.org/wiki/Pines%27_demon https://en.wikipedia.org/wiki/Pines%27_demon https://en.wikipedia.org/wiki/Maxwell%27s_demon https://en.wikipedia.org/wiki/Maxwell%27s_demon