Timeline for Which CFTs have AdS/CFT duals?
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| Jan 16, 2013 at 11:57 | comment | added | Vibert | This is an old question, but since someone edited it, I'll take the opportunity to comment. 'Mean field theory' in CFT means that all operators factorize through Wick's theorem. (In other words, the theory is "almost free" or "almost Gaussian".) We know that this is true for free fields (i.e of dimension 1 in 4D), but you can define a CFT by choosing some field dimension $[\varphi] = \Delta$ and letting all correlation functions be exactly those predicted by Wick's theorem. | |
| Mar 3, 2012 at 6:47 | history | answered | GuSuku | CC BY-SA 3.0 |