Simple argument for critical exponent

  • #1
paralleltransport
131
93
Hello.

I wanted to construct a simple and clear explanation for the relation between the beta function and the critical exponents (divergence of correlation length) close to a critical point.

I wanted to check if this reasoning is valid. This is my own rewording of complicated arguments I see in standard QFT texts.

1637054993448.png
 

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