2D Critical Exponents

[WillPugs]

We have two possible values for the H=0 critical exponents of the 2D Ising model.

Exact results from Onsager:

• $\alpha=0(log)$
• $\beta=1/8$
• $\gamma=7/4$
• $\delta=15$
• $\eta=1/4$
• $\nu=1$

Mean field results (applies to our simulation):

• $\alpha=0(disc.)$
• $\beta=1/2$
• $\gamma=1$
• $\delta=3$
• $\eta=0$
• $\nu=1/2$