# What is the advantage of AdS/CFT in studying strongly coupled systems compared with lattice methods

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I often heard that AdS/CFT correspondence provides a powerful framework to study strongly coupled systems, to which perturbation is not applicable. However, lattice methods still work in the non-perturbative domain. My question is, what is the advantage of AdS/CFT? Is there any example impossible to access by lattice method (I don't mind lattice get numerical than analytic results)?

This post imported from StackExchange Physics at 2014-07-21 09:31 (UCT), posted by SE-user user26143

edited Jul 21, 2014
Lattice methods are computationally very intensive and offer _only_ numbers as results, no insight. AdS/CFT provides more of the latter. Apart from that I can't tell when which approach would be better. Let them compete until time tells...
Forgive my ignorance, I thought AdS/CFT is a technical advance to map a strongly coupled field theory to weakly coupled gravity theory, which is easier to solve. What kind of physical insight it has been provided?

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