A What are the methods for calculating quantum phase transition?

nik9039
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Trying to understand what the math methods are exist to determine quantum phase transition and how I can calculate it, by what methods.
 
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I don't know what you are talking about and what the meaning of your diagram is. Do you have a concrete physical problem in mind? Asking a clearly defined question is usually more than half way to a solution!
 
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Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...
I asked a question related to a table levitating but I am going to try to be specific about my question after one of the forum mentors stated I should make my question more specific (although I'm still not sure why one couldn't have asked if a table levitating is possible according to physics). Specifically, I am interested in knowing how much justification we have for an extreme low probability thermal fluctuation that results in a "miraculous" event compared to, say, a dice roll. Does a...
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