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What is the exact meaning of mean field approximation works above a critical dimensio 
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#1
Nov1212, 10:26 AM

P: 307

what does it means exactly?
take the ddimensional ising model as an example suppose d>d_c does it mean that the critical temperature is correctly captured by the mean field theory? or does it just mean that the critical indices are correctly captured by the mean field theory? 


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