4 ms·

“If you perturb AdS space-time and wait a sufficient time,” Moschidis said, “you’ll end up with a different geometry — one that contains black holes — and it’s

“If you perturb AdS space-time and wait a sufficient time,” Moschidis said, “you’ll end up with a different geometry — one that contains black holes — and it’s no longer AdS. That’s what we mean by unstable.” But our universe is known to contain black holes and yet isn't it being AdS considered an open question ? Or is it only an open question about the universe during its infancy ?

frisco 6y ago
Our universe is definitely not described by anti-de Sitter space. It might be de Sitter space though.
- seemslegit 6y ago
  Then why do we care so much about AdS/CFT correspondance ?
  - pas 6y ago
    The bulk-boundary equivalency. It seems it's possible to describe some models' insides just by studying its surface. (Hence the holographic principle.)
  - ganzuul 6y ago
    It seems to be an approach to study quantum gravity. (Drive-by plug for Stochastic electrodynamics.)