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The classical limit of AdS/CFT

  1. Jan 7, 2015 #1

    Demystifier

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    The AdS/CFT correspondence is a correspondence of one quantum theory to another quantum theory. But what about the classical limit of these two theories? Is there a correspondence between the corresponding classical theories? If there is, what a precise form this classical-to-classical correspondence takes?
     
  2. jcsd
  3. Jan 7, 2015 #2

    atyy

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    fzero commented on this in https://www.physicsforums.com/threa...-form-ways-it-could-fail.706159/#post-4479075. I don't understand it much, but here is his comment.

     
  4. Jan 7, 2015 #3

    Demystifier

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    Thanks atty, but I don't find in satisfying. For instance, one can certainly consider a classical gauge theory with small N (classical electrodynamics is an example), so I cannot accept the claim that classical limit is the large N limit. Indeed, the classical limit should be related to the Planck constant going to zero (in a suitable way), while the discussion above does not even mention the Planck constant.
     
    Last edited: Jan 7, 2015
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