Quantum Cosmology and AdS/CFT

In this paper we study the creation of brane-worlds in $AdS$ bulk. We first consider the simplest case of onebranes in $Ad{S}_3$. In this case we are able to properly describe the creation of a spherically symmetric brane-world deriving a general expression for its wavefunction. Then, we sketch the $Ad{S}_{d+1}$ set-up within the context of the WKB approximation. Finally, we comment on these scenarios in light of the $AdS\mathrm{/}CFT$ correspondence.