In statistical mechanics, an universality class is a set of mathematical models which share a scale-invariant limit under renormalization group flow. While the models within a class may differ at finite scales, their behaviour become increasingly similar as the limit scale is approached.
In statistical mechanics, an universality class is a set of mathematical models which share a scale-invariant limit under renormalization group flow. While the models within a class may differ at finite scales, their behaviour become increasingly similar as the limit scale is approached.
Source: Wikipedia "Universality class" · CC BY-SA 4.0
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