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Résumé |
Holographic CFTs possess a certain point in moduli space where there is a weakly
coupled gravity dual. Computing the first non-trivial term in a four-point
function using this description used to involve tedious work but much of this
has now been superseded by bootstrap methods. In the case of AdS_5 x S^5
supergravity, there are now compact expressions for infinitely many tree-level
four-point functions and these have served as a stepping stone towards
correlators with loops, stringy corrections and more external legs. AdS_3 x S^3
is another supergravity background with a close connection to known holographic
CFTs but it has not yet been put on the same footing. In this talk, I will
explain why the obstacles are less daunting than they used to be and how they
can be overcome with a formalism based on multiple Mellin amplitudes. |
