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Is There a Universality Class?
The idea of a universality class, which is a phrase logi oth it that these very different physical systems can obey the same equations under the right circumstances. So you could say, let's take a magnet, and lets suppose it's,. some some alloy or some, some, some scop some sort of atoms in it. Then i take another magnet, which is made out of completely different atoms, cat different interactions, different magnetic different elecrolecobes and so on. The first kind of universality says that regardless of what atoms it is, the transition happens in exactly the same way. Universality numer two is, actually, it o doesn't even have to